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181 002
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5.1.7 Handling of an ongoing session
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The specific requirements for the Multimedia Telephony with PSTN/ISDN simulation service shall be provided as described in clause 5.2.1.2 of TS 181 005 [1].
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181 002
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5.1.8 Outgoing communications
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181 002
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5.1.8.1 Anonymous communication session
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A session is considered anonymous when a user receiving an incoming session cannot identify the originating party. Anonymous communication sessions shall be handled as described in TS 181 005 [1].
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181 002
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5.1.9 Incoming communications
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181 002
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5.1.9.1 Busy state
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The requirements for busy state are provided in TS 181 005, clause 4.2.2.6 [1].
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181 002
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6 Quality of Service
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The requirements for the provision of Quality of Service shall be provided as described in TS 181 005 [1].
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181 002
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7 Interworking considerations
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181 002
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7.1 Interworking with existing PSTN/ISDN networks
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An NGN shall support the interoperability of the multimedia telephony services with PSTN/ISDN services and vice-versa. This includes interworking PSTN/ISDN supplementary services with the services defined in the present document and vice-versa. The scope of this interworking may result in a limited service capability. ETSI ETSI TS 181 002 V2.2.5 (2007-11) 14
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181 002
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7.2 Interworking with other IMS
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An NGN shall support the interoperability of the simulation services defined in the present document with other NGN if the services are supported by both NGN.
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181 002
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7.3 Interworking with emulation services
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An NGN shall support the interoperability of the multimedia telephony with PSTN/ISDN Simulation Services with the services provided by the NGN PSTN/ISDN Emulation subsystems where both are deployed. The scope of this interworking may result in the same limited service capability as interworking with an existing PSTN/ISDN network.
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181 002
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8 PSTN/ISDN simulation services
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181 002
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8.1 General
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This clause provides the description of the PSTN/ISDN simulation services. For each PSTN/ISDN simulation service, the following is provided: • a short service definition; • a description of the normal operation with successful outcome. And when applicable also: • a description of exceptional operation or unsuccessful outcome; • descriptions on interaction with other PSTN/ISDN simulation services; and • consideration for Interworking with the PSTN/ISDN. In general if a simulation service is not mentioned within the interaction clause then there is no impact. Services have been split into 3 categories: Mandatory services: selected services that must form the basis of any set of services considered to be mimicking the PSTN/ISDN services. These are considered to meet the requirements of regulation concerning the processing of personal data and the protection of privacy in the electronic communications sector. • Recommended services: selected services that offer service providers with a transition from PSTN/ISDN to NGN. • Optional services: other services.
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181 002
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8.2 Mandatory services
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181 002
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8.2.1 Originating Identification Presentation (OIP)
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181 002
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8.2.1.1 Definition
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The OIP simulation service provides the terminating party with the Identity of the originating party. The requirements for Presentation of session originating party identity shall be handled as described in TS 181 005 [1]. ETSI ETSI TS 181 002 V2.2.5 (2007-11) 15
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181 002
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8.2.1.2 Service interactions with other PSTN/ISDN simulation services (NGN)
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181 002
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8.2.1.2.1 Identification services
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8.2.1.2.1.1 Originating Identification Restriction (OIR) The requirements for the interactions between presenting and withholding the originating party's identity shall be as described in TS 181 005 [1].
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181 002
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8.2.1.2.2 Diversion services
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8.2.1.2.2.1 Communication Forwarding Unconditional (CFU) When a communication has been forwarded and the forwarded-to party has been provided with the OIP simulation service, the forwarded-to party shall receive the identity information of the original originating party, if this originating party has not subscribed to or invoked the OIR simulation service. 8.2.1.2.2.2 Communication Forwarding Busy (CFB) When a communication has been forwarded and the forwarded-to party has been provided with the OIP simulation service, the forwarded-to party shall receive the identity information of the original originating party, if this originating party has not subscribed to or invoked the OIR simulation service. 8.2.1.2.2.3 Communication Forwarding No Reply (CFNR) When a communication has been forwarded and the forwarded-to party has been provided with the OIP simulation service, the forwarded-to party shall receive the identity information of the original originating party, if this originating party has not subscribed to or invoked the OIR simulation service. 8.2.1.2.2.4 Communication Forwarding on Not Logged-in (CFNL) When a communication has been forwarded and the forwarded-to party has been provided with the OIP simulation service, the forwarded-to party shall receive the identity information of the original originating party, if this originating party has not subscribed to or invoked the OIR simulation service. 8.2.1.2.2.5 Communication Deflection (CD) When a communication has been deflected and the deflected-to party has been provided with the OIP simulation service, the deflected-to party shall receive the identity information of the original originating party, if this originating party has not subscribed to or invoked the OIR simulation service. 8.2.1.2.2.6 Communication Forwarding on Subscriber Not Reachable (CFNRc) When a communication has been forwarded and the forwarded-to party has been provided with the OIP simulation service, the forwarded-to party shall receive the identity information of the original originating party, if this originating party has not subscribed to or invoked the OIR simulation service. 8.2.1.2.2.7 Communication Diversion Notification (CDIVN) When a communication diversion is being notified to a served user (who has subscribed for CDIV Notification) and the served user has been provided with the OIP simulation service, then the served User shall receive the identity information of the originating party, if • this originating party has not subscribed to or invoked the OIR Simulation service and • the served user, has not disabled delivery of Originating Party Identity within the CDIV Notification. ETSI ETSI TS 181 002 V2.2.5 (2007-11) 16
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181 002
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8.2.1.2.3 Communication Waiting (CW)
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If a party has the OIP service active and is notified that an incoming communication is waiting, then this party shall receive the identity information of the originating party, if this originating party has not subscribed to or invoked the OIR simulation service.
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181 002
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8.2.1.3 Interoperability with PSTN/ISDN Networks
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The NGN shall support the interoperability of the OIP service with PSTN/ISDN Supplementary Service CLIP and vice-versa. The scope of this interworking may result in a limited service capability (only E.164 numbers can be used in the PSTN/ISDN).
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181 002
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8.2.2 Originating Identification Restriction (OIR)
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181 002
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8.2.2.1 Definition
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The Originating Identification Restriction (OIR) simulation service enables the originating party to withhold the presentation of its asserted identity information to the terminating party. The requirements for withholding the originators identity shall be as described in TS 181 005 [1]. Those requirements also allow certain terminating party to override the restriction (override capability).
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181 002
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8.2.2.2 Service interactions with other PSTN/ISDN simulation services (NGN)
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181 002
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8.2.2.2.1 Identification services
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8.2.2.2.1.1 Originating Identification Presentation (OIP) The requirements for the interactions between presenting and withholding the originating parties identity shall be as described in TS 181 005 [1].
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181 002
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8.2.2.2.2 Diversion services
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8.2.2.2.2.1 Communication Forwarding Unconditional (CFU) When the OIR simulation service has been invoked, the originating party's identity information shall not be presented to the forwarded-to party unless the forwarded-to party has an override capability. 8.2.2.2.2.2 Communication Forwarding Busy (CFB) Same as for CFU. 8.2.2.2.2.3 Communication Forwarding No Reply (CFNR) Same as for CFU. 8.2.2.2.2.4 Communication Forwarding on Not Logged-in (CFNL) Same as for CFU. 8.2.2.2.2.5 Communication Deflection (CD) Same as for CFU. 8.2.2.2.2.6 Communication Forwarding on Subscriber Not Reachable (CFNRc) Same as for CFU. ETSI ETSI TS 181 002 V2.2.5 (2007-11) 17 8.2.2.2.2.7 Communication Diversion Notification (CDIVN) When the OIR simulation service has been invoked, the originating party's identity information shall not be notified to the user, who has subscribed for the CDIVN service.
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181 002
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8.2.2.2.3 Explicit Communication Transfer (ECT)
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An originating party's restriction requirements from the original communication shall be used in order to restrict the presentation of that party's identity to any party in a transferred communication.
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181 002
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8.2.2.3 Interoperability with PSTN/ISDN Networks
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An NGN shall support the interoperability of OIR service with the PSTN/ISDN Supplementary Service CLIR and vice-versa. The scope of this interworking may result in a limited service capability. The Originating Identity Restriction information shall be conveyed from an NGN to a PSTN/ISDN and vice-versa. The network to which the called/terminating party is connected to is responsible to handle this service. In case of limited interoperability the restriction, OIR/CLIR shall have precedence.
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181 002
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8.2.3 Terminating Identification Presentation (TIP)
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181 002
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8.2.3.1 Definition
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The TIP simulation service provides the originating party with the asserted identity of the terminating party. The requirements for the presentation of the terminating identity shall be as described in TS 181 005 [1].
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ae3dfca740c8c62772d38184c6500f19
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181 002
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8.2.3.2 Service interactions with other ISDN/PSTN simulation services (NGN)
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181 002
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8.2.3.2.1 Identification services
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8.2.3.2.1.1 Terminating identification presentation restriction The requirements for the interactions between presenting and withholding the terminating party's identity shall be as described in TS 181 005 [1].
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181 002
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8.2.3.2.2 Diversion services
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If forwarding party B chooses to restrict the presentation of the forwarded-to party C's identity, the originating party A shall not receive the terminating party C's identity irrespective of whether the terminating party C has TIR activated or not.
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181 002
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8.2.3.3 Interoperability with PSTN/ISDN Networks
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The NGN shall support the interoperability of the TIP services with PSTN/ISDN Supplementary Service COLP and vice-versa. The scope of this interworking may result in a limited service capability.
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181 002
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8.2.4 Terminating Identification Restriction (TIR)
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181 002
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8.2.4.1 Definition
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The Terminating Identification Restriction (TIR) enables the terminating party to withhold presentation of its asserted identity information to the originating party. The requirements for withholding the terminating party's identity are described in TS 181 005 [1]. Those requirements also allow certain originating parties to override the restriction (override capability). This service description is based on the service description described in ETS 300 095 [10]. ETSI ETSI TS 181 002 V2.2.5 (2007-11) 18
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181 002
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8.2.4.2 Service interactions with other PSTN/ISDN simulation services (NGN)
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181 002
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8.2.4.2.1 Identification services
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8.2.4.2.1.1 Terminating Identification Presentation (TIP) The requirements for the interactions between presenting and withholding the terminating party's identity shall be as described in TS 181 005 [1].
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181 002
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8.2.4.3 Interoperability with PSTN/ISDN Networks
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The NGN shall support the interoperability of the TIR services with PSTN/ISDN Supplementary Services and vice-versa. The scope of this interworking may result in a limited service capability. In case of limited interoperability the restriction, TIR/COLR shall have precedence.
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181 002
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8.2.5 Malicious Communication IDentification (MCID)
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181 002
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8.2.5.1 Definition
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The MCID simulation service enables an incoming communication to be identified and registered. The requirements for the MCID shall be as described in clause 5.6.3 of TS 181 005 [1].
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181 002
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8.2.5.2 Service interactions with other PSTN/ISDN simulation services (NGN)
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ae3dfca740c8c62772d38184c6500f19
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181 002
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8.2.5.2.1 Diversion Services
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The MCID simulation service can be invoked for a diverted communication. In addition to the normal operation of the MCID simulation service, the identity of the first diverting party shall be registered and, as a network option, the last diverting party can be registered. 8.2.5.2.1.1 Communication Forwarding No Reply (CFNR) If the terminating party has activated CFNR, once forwarding has taken place, the forwarding party cannot invoke the MCID simulation service. 8.2.5.2.1.2 Communication Deflection (CD) If the terminating party has activated communication deflection, once deflection has taken place, the deflecting party cannot invoke the MCID simulation service.
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181 002
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8.2.5.2.2 Explicit Communication Transfer (ECT)
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The transferring party cannot invoke the malicious communication identification simulation service on a communication after transfer of that communication has been successfully invoked. If after a transfer has been completed, the transferred-to party successfully invokes the malicious communication identification simulation service, then the network shall register the identities of all parties involved.
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181 002
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8.2.5.2.3 CONFerence (CONF)
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The conference controller cannot invoke the malicious call identification supplementary service for participants within the conference. NOTE: To activate the malicious call identification supplementary service, the conference controller should first create a private communication with the user to be identified using the malicious call identification supplementary service. ETSI ETSI TS 181 002 V2.2.5 (2007-11) 19 If a participant invokes the malicious call identification supplementary service, only information about the connection to the conference controller shall be registered. No information about the other participants shall be registered.
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181 002
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8.2.5.2.4 Three-Party (3PTY)
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See clause 8.2.5.2.3, noting that 3PTY is a special case of CONF.
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181 002
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8.2.5.3 Interoperability with PSTN/ISDN Networks
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The MCID service shall interoperate for all communications from a PSTN/ISDN to an NGN and vice-versa. The registered information shall be stored in the invoking party's network and may also be stored in the malicious party's network.
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181 002
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8.2.6 Anonymous Communication Rejection (ACR)
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181 002
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8.2.6.1 Definition
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The Anonymous Communications Rejection (ACR) simulation service allows the terminating party to reject incoming communications from originating parties that cannot be identified. The requirements for ACR shall be as described in TS 181 005 [1]. This service description is based on the service description described in EN 301 798 [11].
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181 002
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8.2.6.2 Service interactions with other PSTN/ISDN simulation services (NGN)
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ae3dfca740c8c62772d38184c6500f19
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181 002
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8.2.6.2.1 Identification Services
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8.2.6.2.1.1 Originating Identification Presentation (OIP) No impact, i.e. neither simulation service shall affect the operation of the other simulation service. 8.2.6.2.1.2 Originating Identification Restriction (OIR) If the terminating party has activated the ACR simulation service, then the OIR simulation service causes the execution of the ACR simulation service in accordance with the procedures in clause 8.2.6.1. If the terminating party has the override capability according to the OIR simulation service, then the ACR simulation service shall not apply.
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ae3dfca740c8c62772d38184c6500f19
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181 002
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8.2.6.2.2 Diversion Services
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NOTE: The precedence that ACR takes over the communication diversion services does not exclude the use of forwarding functionality in the ACR functionality itself. As an example: forwarding of anonymous communications (e.g. to a voice mailbox), as part of the ACR functionality is possible. If the diverted-to user has activated the ACR simulation service, then the ACR simulation service shall take precedence over the communication diversion simulation service i.e. the communication shall be rejected according to the ACR simulation service. 8.2.6.2.2.1 Communication Forwarding Unconditional (CFU) If the forwarding party has activated the ACR simulation service, then the ACR simulation service shall take precedence over the communication forwarding unconditional simulation service i.e. the communication shall be rejected according to the ACR simulation service. ETSI ETSI TS 181 002 V2.2.5 (2007-11) 20 8.2.6.2.2.2 Communication Forwarding Busy (CFB) If the forwarding party has activated the ACR simulation service, then the ACR simulation service shall take precedence over the communication forwarding busy simulation service i.e. the communication shall be rejected according to the ACR simulation service. 8.2.6.2.2.3 Communication Forwarding No Reply (CFNR) If the forwarding party has activated the ACR simulation service: • no impact, i.e. neither simulation service shall affect the operation of the other simulation service. NOTE: If the originating party has restricted its identity due to the OIR simulation service the communication will not be presented. 8.2.6.2.2.4 Communication Forwarding on Not Logged-in (CFNL) If the forwarding party has activated the ACR simulation service, then the ACR simulation service shall take precedence over the communication forwarding on not logged in simulation service i.e. the communication shall be rejected according to the ACR simulation service. 8.2.6.2.2.5 Communication Forwarding on Subscriber Not Reachable (CFNRc) If the forwarding party has activated the ACR simulation service, then the ACR simulation service shall take precedence over the communication forwarding on subscriber not reachable simulation service i.e. the communication shall be rejected according to the ACR simulation service.
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ae3dfca740c8c62772d38184c6500f19
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181 002
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8.2.6.2.3 Communication Waiting (CW)
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If the terminating party has activated the ACR simulation service, then the ACR simulation service shall take precedence over the Communication Waiting simulation service. The ACR simulation service can be activated while a communication is waiting without changing the state of the waiting communication session.
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181 002
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8.2.6.2.4 Completion of Communications to Busy Subscriber (CCBS)
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NOTE 1: A CCBS recall (from the network to the originating party) resulting from the completion of communications to busy subscribers should not be rejected due to the application of the ACR simulation service. Assuming the originating party connects to the terminating party and the terminating party activates the ACR simulation service (or has activated the ACR simulation service), two cases are possible: a) The ACR simulation service was activated by the terminating party before the originating party originates a communication: - No impact, i.e. neither simulation service shall affect the operation of the other simulation service. NOTE 2: If the originating party has restricted its identity due to the OIR simulation service and if the terminating party is busy, the originating party will receive no busy indication, and the completion of communications to busy subscriber simulation service will not apply. Instead the communication session attempt should be rejected according to the normal procedures of the ACR simulation service. b) The ACR simulation service is activated by the terminating party after the originating party has activated the completion of communications to busy subscriber simulation service on the terminating party: - If the terminating party activates the ACR simulation service after the originating party has activated the completion of communications to busy subscriber simulation service on the terminating party, then the communication resulting from the completion of communications to busy subscriber simulation service shall be rejected if the originating party has restricted its identity due to the OIR simulation service. ETSI ETSI TS 181 002 V2.2.5 (2007-11) 21
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181 002
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8.2.6.3 Interoperability with PSTN/ISDN
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The NGN shall support the interoperability of the ACR services with PSTN/ISDN Supplementary Service ACR and vice-versa. The scope of this interworking may result in a limited service capability.
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ae3dfca740c8c62772d38184c6500f19
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181 002
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8.3 Recommended services
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181 002
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8.3.1 Communication DIVersion (CDIV)
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181 002
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8.3.1.1 Definition
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The following Communication DIVersion simulation services are defined: • Communication Forwarding Unconditional (CFU). • Communication Forwarding Busy (CFB). • Communication Forwarding No Reply (CFNR). • Communication Forwarding on Not Logged in (CFNL). • Communication Deflection (CD). • Communication Forwarding on Subscriber Not Reachable (CFNRc). • Communication Diversion Notification (CDIVN); this service is applicable to all other CDIV services. For all communications diversion simulation services, a service provider option of notification of diversion may be provided to the originating party. This service provider option may also include support for the invoking user to suppress the notification. The use of any of the diversion services or a call identified as a callback to an emergency call, by a user that is not the PSAP, shall be precluded. Communication Forwarding Unconditional (CFU) The CFU service enables a user to have the network redirect all communications to another user. The CFU service may operate on all communication, or just those associated with specified services. The user's ability to originate communications is unaffected by the CFU simulation service. After the CFU service has been activated, communications are forwarded independent of the status of the user. As a service provider option, a subscription option can be provided to enable the user to receive an indication that the CFU service has been activated. This indication may be provided when the user originates a communication if the CFU service has been activated for the user's identity and for the service requested for the communication. The maximum number of diversions permitted for each communication is a service provider option. The service provider shall define the upper limit of diversions. When counting the number of diversions, all types of diversion are included. This service description is based on the service description described in ETS 300 200 [12]. Communication Forwarding Busy (CFB) The CFB service enables a user to have the network redirect communications, which would otherwise be regarded as busy, to another user. The CFB service may operate on all communications, or just those associated with specified services. The user's ability to originate communications is unaffected by the CFB simulation service. As a service provider option, a subscription option can be provided to enable the user to receive an indication that the CFB service has been activated. This indication may be provided when the user originates a communication if the CFB service has been activated for the user and for the service requested for the communication. ETSI ETSI TS 181 002 V2.2.5 (2007-11) 22 The maximum number of diversions permitted for each communication is a service provider option. The service provider shall define the upper limit of diversions. When counting the number of diversions, all types of diversion are included. This service description is based on the service description described in EN 300 199 [13]. Communication Forwarding No Reply (CFNR) The CFNR service enables a user to have the network redirect communications, when the communication request is not responded to within a defined period of time, to another user. The CFNR service may operate on all communications, or just those associated with specified services. The user's ability to originate communications is unaffected by the CFNR simulation service. The CFNR service can only be invoked by the network after the communication has been offered to the user and an indication that the user has been informed of the communication request. As a service provider option, a subscription option can be provided to enable the user to receive an indication that the CFNR service has been activated. This indication may be provided when the user originates a communication if the CFNR service has been activated for the user and for the service requested for the communication. The maximum number of diversions permitted for each communication is a service provider option. The service provider shall define the upper limit of diversions. When counting the number of diversions, all types of diversion are included. This service description is based on the service description described in EN 300 201 [14]. Communication Forwarding on Not Logged-in (CFNL) The Communication Forwarding on Not Logged-in (CFNL) service enables a user to redirect incoming communications, when the user is not currently registered (logged-in), to another user. The CFNL service may operate on all communications, or just those associated with specified services. As a service provider option, a subscription option can be provided to enable the user to receive an indication that the CFNL service has been activated. This indication may be provided when the user next registers (logs in). An indication may also be provided as part of de-registration (log out). The maximum number of diversions permitted for each communication is a service provider option. The service provider shall define the upper limit of diversions. When counting the number of diversions, all types of diversion are included. Communication Deflection (CD) The CD service enables the user to respond to an incoming communication by requesting redirection of that communication to another user. The CD service can only be invoked before the communication is established by the user, i.e. in response to the offered communication, or during the period that the user is being informed of the communication. The user's ability to originate communications is unaffected by the CD simulation service. The maximum number of diversions permitted for each communication is a service provider option. The service provider shall define the upper limit of diversions. When counting the number of diversions, all types of diversion are included. This service description is based on the service description described in ETS 300 202 [15]. Communication Forwarding on Subscriber Not Reachable (CFNRc) The CFNRc service enables a user to have the network redirect all incoming communications, when the user is not reachable (e.g. there is no IP connectivity to the user's terminal), to another user. The CFNRc service may operate on all communications, or just those associated with specified services. The user's ability to originate communications is unaffected by the CFNRc simulation service. As a service provider option, a subscription option can be provided to enable the user to receive an indication that the CFNRc service has been activated. This indication may be provided when the user originates a communication if the CFNRc service has been activated for the user and for the service requested for the communication. ETSI ETSI TS 181 002 V2.2.5 (2007-11) 23 The maximum number of diversions permitted for each communication is a service provider option. The service provider shall define the upper limit of diversions. When counting the number of diversions, all types of diversion are included. Communication Diversion Notification (CDIVN) The CDIVN service enables a user to receive notifications about the diversions (or forwarding) of incoming communications, post execution of at least one other CDIV service. As a service provider option, a subscription option can be provided to enable the served user to receive an indication that the CDIVN service has been activated. This indication shall be provided when the served user originates a communication if the CDIVN service has been activated for the served user's address.
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ae3dfca740c8c62772d38184c6500f19
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181 002
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8.3.1.2 Service interactions with other PSTN/ISDN simulation services (NGN)
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ae3dfca740c8c62772d38184c6500f19
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181 002
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8.3.1.2.1 Identification services
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8.3.1.2.1.1 Originating Identification Presentation (OIP) When a communication has been diverted and the diverted-to party has been provided with the originating identification presentation simulation service, the diverted-to party shall receive the identity of the originating party, if this originating party has not subscribed to or invoked the originating identification restriction simulation service. 8.3.1.2.1.2 Originating Identification Restriction (OIR) When the originating identification restriction simulation service has been invoked, the originating party's identity shall not be presented to the diverted-to party unless the diverted-to party has an override capability. 8.3.1.2.1.3 Terminating Identification Presentation (TIP) When a communication has been diverted and the originating party has been provided with the terminating identification presentation simulation service, the originating party shall receive the identity of the diverted-to party, unless the diverting user has selected the option to suppress the notification of diversion. 8.3.1.2.1.4 Terminating Identification Restriction (TIR) If the diverting party or the diverted-to party has invoked the Terminating Identification Restriction simulation service, then the diverted-to party's identity shall not be provided to the originating party unless the originating party has override capability.
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ae3dfca740c8c62772d38184c6500f19
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181 002
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8.3.1.2.2 Malicious Communication IDentification (MCID)
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See clause 8.2.5.2.1.
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ae3dfca740c8c62772d38184c6500f19
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181 002
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8.3.1.2.3 Anonymous Communication Rejection (ACR)
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See clause 8.2.6.2.2.
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181 002
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8.3.1.2.4 Diversion services
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8.3.1.2.4.1 Communication Forwarding Unconditional (CFU) Communication Forwarding Unconditional (CFU): Not applicable. Communication Forwarding Busy (CFB): Invocation of the communication forwarding unconditional simulation service shall take precedence over the CFB simulation service. Communication Forwarding No Reply (CFNR): Invocation of the communication forwarding unconditional simulation service shall take precedence over the CFNR simulation service. ETSI ETSI TS 181 002 V2.2.5 (2007-11) 24 Communication Forwarding on Not Logged-in (CFNL): Invocation of the communication forwarding unconditional simulation service shall take precedence over the CFNL simulation service. Communication Deflection (CD): Invocation of the communication forwarding unconditional simulation service shall take precedence over the CD simulation service. Communication Forwarding on Subscriber Not Reachable (CFNRc): Invocation of the communication forwarding unconditional simulation service shall take precedence over the CFNRc simulation service. Communication Diversion Notification (CDIVN): No impact, as CDIVN only enables a notification of Communication Diversion Information, post execution of at least one CDIV service. 8.3.1.2.4.2 Communication Forwarding Busy (CFB) Communication Forwarding Unconditional (CFU): Invocation of the CFU simulation service shall take precedence over the communication forwarding busy simulation service. Communication Forwarding Busy (CFB): Not applicable. Communication Forwarding No Reply (CFNR): No impact, i.e. neither simulation service shall affect the operation of the other simulation service. Communication Forwarding on Not Logged-in (CFNL): No impact, i.e. neither simulation service shall affect the operation of the other simulation service. Communication Deflection (CD): If the terminating party is not network determined user busy, then the CD simulation service or the communication forwarding busy simulation service can be invoked, depending on the response from the terminating party. Communication Forwarding on Subscriber Not Reachable (CFNRc): If the terminating party is network determined busy, then CFB shall take precedence over CFNRc. Otherwise, if the terminating party is not network determined user busy, then there is no impact, i.e. neither simulation service shall affect the operation of the other simulation service. Communication Diversion Notification (CDIVN): No impact, as CDIVN only enables a notification of Communication Diversion Information, post execution of at least one CDIV service. 8.3.1.2.4.3 Communication Forwarding No Reply (CFNR) Communication Forwarding Unconditional (CFU): Invocation of the CFU simulation service shall take precedence over the communication forwarding no reply simulation service. Communication Forwarding Busy (CFB): No impact, i.e. neither simulation service shall affect the operation of the other simulation service. Communication Forwarding No Reply (CFNR): Not applicable. Communication Forwarding on Not Logged-in (CFNL): No impact, i.e. neither simulation service shall affect the operation of the other simulation service. Communication Deflection (CD): No impact, i.e. neither simulation service shall affect the operation of the other simulation service. NOTE: If the network indicates the arrival of an incoming communication to the terminating party, then the CD simulation service, or the communication forwarding no reply simulation service can be invoked, depending on the response, or lack of response, from the terminating party. Communication Forwarding on Subscriber Not Reachable (CFNRc): No impact, i.e. neither simulation service shall affect the operation of the other simulation service. Communication Diversion Notification (CDIVN): No impact, as CDIVN only enables a notification of Communication Diversion Information, post execution of at least one CDIV service. ETSI ETSI TS 181 002 V2.2.5 (2007-11) 25 8.3.1.2.4.4 Communication Forwarding on Not Logged-in (CFNL) Communication Forwarding Unconditional (CFU): Invocation of the communication forwarding unconditional simulation service shall take precedence over the CFNL simulation service. Communication Forwarding Busy (CFB): No impact, i.e. neither simulation service shall affect the operation of the other simulation service. Communication Forwarding No Reply (CFNR): No impact, i.e. neither simulation service shall affect the operation of the other simulation service. Communication Forwarding on Not Logged-in (CFNL): Not applicable. Communication Deflection (CD): No impact, i.e. neither simulation service shall affect the operation of the other simulation service. Communication Forwarding on Subscriber Not Reachable (CFNRc): No impact, i.e. neither simulation service shall affect the operation of the other simulation service. Communication Diversion Notification (CDIVN): No impact, Iin case of CFNL activitation, the CDIVN service will buffer the Communication Diversion Notification information and notify the user, when the user logs in again. The Communication Diversion Information will be buffered for a time-period configurable by the User and/or the provider. 8.3.1.2.4.5 Communication Deflection (CD) Communication Forwarding Unconditional (CFU): Invocation of the CFU simulation service shall take precedence over the communication deflection simulation service. Communication Forwarding Busy (CFB): If the terminating party is not network determined user busy, then the communication deflection simulation service or the CFB simulation service can be invoked, depending on the response from the terminating party. Communication Forwarding No Reply (CFNR): No impact, i.e. neither simulation service shall affect the operation of the other simulation service. NOTE: If the network indicates the arrival of an incoming communication to the terminating party, then the communication deflection simulation service, or the CFNR simulation service can be invoked, depending on the response, or lack of response, from the terminating party. Communication Forwarding on Not Logged-in (CFNL): No impact, i.e. neither simulation service shall affect the operation of the other simulation service. Communication Deflection (CD): Not applicable. Communication Forwarding on Subscriber Not Reachable (CFNRc): No impact, i.e. neither simulation service shall affect the operation of the other simulation service. Communication Diversion Notification (CDIVN): No impact, as CDIVN only enables a notification of Communication Diversion Information, post execution of at least one CDIV service. 8.3.1.2.4.6 Communication Forwarding on Subscriber Not Reachable (CFNRc) Communication Forwarding Unconditional (CFU): Invocation of the communication forwarding unconditional simulation service shall take precedence over the CFNRc simulation service. Communication Forwarding Busy (CFB): If the terminating party is network determined busy, then CFB shall take precedence over CFNRc. Otherwise, if the terminating party is not network determined user busy, then there is no impact, i.e. neither simulation service shall affect the operation of the other simulation service. Communication Forwarding No Reply (CFNR): No impact, i.e. neither simulation service shall affect the operation of the other simulation service. Communication Forwarding on Not Logged-in (CFNL): No impact, i.e. neither simulation service shall affect the operation of the other simulation service. ETSI ETSI TS 181 002 V2.2.5 (2007-11) 26 Communication Deflection (CD): No impact, i.e. neither simulation service shall affect the operation of the other simulation service. Communication Forwarding on Subscriber Not Reachable (CFNRc): Not applicable. Communication Diversion Notification (CDIVN): No impact, Iin case of CFNRc activitation, the CDIVN service will buffer the Communication Diversion Notification information and notify the user, until the time the User is reachable again. The Communication Diversion Information will be buffered for a time-period configurable by the User and/or the provider. 8.3.1.2.4.7 Communication Diversion Notification (CDIVN) Communication Forwarding Unconditional (CFU): No impact, as CDIVN only enables a notification of Communication Diversion Information, post execution of at least one CDIV service. Communication Forwarding Busy (CFB): No impact, as CDIVN only enables a notification of Communication Diversion Information, post execution of at least one CDIV service. Communication Forwarding No Reply (CFNR): No impact, as CDIVN only enables a notification of Communication Diversion Information, post execution of at least one CDIV service. Communication Forwarding on Not Logged-in (CFNL): No impact, Iin case of CFNL activitation, the CDIVN service will buffer the Communication Diversion Notification information and notify the user, when the user logs in again. The Communication Diversion Information will be buffered for a time-period configurable by the User and/or the provider. Communication Deflection (CD): No impact, as CDIVN only enables a notification of Communication Diversion Information, post execution of at least one CDIV service. Communication Forwarding on Subscriber Not Reachable (CFNRc): No impact, Iin case of CFNRc activitation, the CDIVN service will buffer the Communication Diversion Notification information and notify the user, until the time the User is reachable again. The Communication Diversion Information will be buffered for a time-period configurable by the User and/or the provider.
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ae3dfca740c8c62772d38184c6500f19
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181 002
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8.3.1.2.5 Communication Waiting (CW)
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Communication Forwarding Unconditional (CFU): CW has no impact on CFU. The communication will be forwarded without regard to the terminating party's state. A forwarded-to party may have communication waiting service and this will be activated if busy. A forwarded communication can result in the communication waiting simulation service. Communication Forwarding Busy (CFB): CW cannot co-exist with CFB. Service Provider options to prevent both services being active at the same time include: One service cannot be activated while the other service is active. • CFB has priority over CW (i.e. the CW never occurs). • CW has priority over CFB (i.e. CFB never occurs). Communication Forwarding No Reply (CFNR): If terminating party has activated the CFNR simulation service, then a waiting communication shall still be offered. If the CFNR timer expires before an answer is received then the CFNR simulation service shall be invoked and the communication shall be forwarded and communication waiting ceased. A forwarded communication can result in the communication waiting simulation service. Communication Forwarding on Not Logged-in (CFNL): No impact. NOTE: If a party with an active communication waiting logs out, the all active and offered communication would be released. Communication Deflection (CD): When receiving the communication waiting indication, terminating party can invoke the CD simulation service. A deflected communication can result in the communication waiting simulation service. ETSI ETSI TS 181 002 V2.2.5 (2007-11) 27 Communication Forwarding on Subscriber Not Reachable (CFNRc): No impact, i.e. neither simulation service shall affect the operation of the other simulation service.
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ae3dfca740c8c62772d38184c6500f19
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181 002
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8.3.1.2.6 Communication Barring (CB)
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8.3.1.2.6.1 Outgoing communication barring-fixed If the outgoing communication barring-fixed simulation service has already been activated, a request to activate any CDIV simulation service shall be rejected if the forwarding party's communication to the diverted-to party would be barred by the outgoing communication barring-fixed simulation service. If the CDIV simulation service was activated before the activation of the outgoing communication barring-fixed simulation service, the outgoing communication barring-fixed simulation service can still be activated. When the two services have already been activated, a request to invoke the CDIV simulation service shall be rejected if the forwarding party's communication to the diverted-to party would be barred by the outgoing communication barring-fixed simulation service at the time of the invocation attempt of the CDIV simulation service. 8.3.1.2.6.2 Outgoing communication barring-user controlled If the outgoing communication barring-user controlled simulation service has already been activated, a request to activate any CDIV simulation service shall be rejected if the forwarding party's communication to the diverted-to party would be barred by the outgoing communication barring-user controlled simulation service. If the CDIV simulation service was activated before the activation of the outgoing communication barring-user controlled simulation service, the outgoing communication barring-user controlled simulation service can still be activated. When the two services have already been activated, a request to invoke the CDIV simulation service shall be rejected if the forwarding party's communication to the diverted-to party would be barred by the outgoing communication barring-user controlled simulation service at the time of the invocation attempt of the CDIV simulation service.
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ae3dfca740c8c62772d38184c6500f19
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181 002
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8.3.1.2.7 Completion of Communications to Busy Subscriber (CCBS)
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CCBS recalls shall never be diverted. They shall be provided to the original originating party. CCBS can not be activated on a diverted communication.
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ae3dfca740c8c62772d38184c6500f19
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181 002
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8.3.1.2.8 Advice Of Charge (AOC)
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8.3.1.2.8.1 Charging information at the End of the communication (AOC-E) Originating party: No impact, i.e. neither simulation service shall affect the operation of the other simulation service. Forwarding party: When a communication is forwarded and the forwarding party is charged for the forwarded part of the communication, then as a network option, the charging information can be transferred to the forwarding user when the communication is terminated provided that the served user has subscribed to the advice of charge: charging information at the end of the communication simulation service with the value of the subscription option set to "for all communications automatically".
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ae3dfca740c8c62772d38184c6500f19
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181 002
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8.3.1.3 Interoperability with PSTN/ISDN
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The NGN shall support the interoperability of the CDIV service with PSTN/ISDN Supplementary Service CF and vice-versa. The scope of this interworking may result in a limited service capability. The CLI information of the originating party as well as further CLI information (first redirected address, last redirected address) may be provided to the final called party, if the PSTN/ISDN allows this. ETSI ETSI TS 181 002 V2.2.5 (2007-11) 28
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ae3dfca740c8c62772d38184c6500f19
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181 002
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8.3.2 Communication Waiting (CW)
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ae3dfca740c8c62772d38184c6500f19
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181 002
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8.3.2.1 Definition
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The Communication Waiting (CW) service enables a terminating party to be informed at the time that a new communication is requested, and that no resources are available for that incoming communication. The user has then the choice of accepting, rejecting or ignoring the incoming communication. The maximum number of communications that may be waiting is a service provider option. If the current number of communications waiting is equal to the maximum, then any new attempted incoming communication request shall be rejected with a busy cause. This service description is based on the service description described in ETS 300 139 [17] and ETS 300 056 [16]. In the presence of another call at the destination user where the incoming call is identified as a callback to an emergency call, then either the communication request shall be presented, or the CW service shall be used.
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ae3dfca740c8c62772d38184c6500f19
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181 002
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8.3.2.2 Service interactions with other PSTN/ISDN simulation services (NGN)
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ae3dfca740c8c62772d38184c6500f19
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181 002
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8.3.2.2.1 Anonymous Communication Rejection (ACR)
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If the terminating party has activated the ACR simulation service, then the ACR simulation service shall take precedence over the Communication Waiting simulation service. The ACR simulation service can be activated while a communication is waiting without changing the state of the waiting communication session.
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ae3dfca740c8c62772d38184c6500f19
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181 002
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8.3.2.2.2 Diversion services
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The interactions between Communication Waiting and Communication Diversion services are described in clause 8.3.1.2.5 of the present document.
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ae3dfca740c8c62772d38184c6500f19
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181 002
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8.3.2.2.3 Completion of Communications to Busy Subscriber (CCBS)
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If a subscriber to the completion of communications to busy subscriber simulation service places a communication to a terminating party who has subscribed to the CW simulation service, and the terminating party is provided the communication waiting indication, then invocation of completion of communications to busy subscriber simulation service cannot occur.
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ae3dfca740c8c62772d38184c6500f19
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181 002
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8.3.2.3 Interoperability with PSTN/ISDN
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No special requirement.
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ae3dfca740c8c62772d38184c6500f19
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181 002
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8.3.3 Communication HOLD (HOLD)
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ae3dfca740c8c62772d38184c6500f19
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181 002
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8.3.3.1 Definition
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The communication HOLD simulation service enables a user to suspend media within a session, and resume that media at a later time. Each party in a communication can hold and retrieve the communication independently from the other party. This also applies when a communication involves more than two parties (e.g. CONF). This service description is based on the service description described in TS 122 228 [20], clause 7.7.2. The use of HOLD on an emergency call, or a call identified as a callback to an emergency call, by a user that is not the PSAP, shall be precluded. ETSI ETSI TS 181 002 V2.2.5 (2007-11) 29
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ae3dfca740c8c62772d38184c6500f19
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181 002
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8.3.3.2 Service interactions with other PSTN/ISDN simulation services (NGN)
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ae3dfca740c8c62772d38184c6500f19
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181 002
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8.3.3.2.1 CONFerence (CONF)
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A, B and C are in a conference that was created by B invoking the CONF service. B can interrupt their own participation in the conference by using the HOLD service. When B does this, A and C shall not receive the HOLD notification and are not prevented from carrying on their conversation
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ae3dfca740c8c62772d38184c6500f19
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181 002
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8.3.3.2.2 Three-Party (3PTY)
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See clause 8.3.3.2.1, noting that 3PTY is a special case of CONF.
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ae3dfca740c8c62772d38184c6500f19
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181 002
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8.3.3.3 Interoperability with PSTN/ISDN
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The NGN shall support the interoperability of the HOLD service with PSTN/ISDN Supplementary Service HOLD and vice-versa. The scope of this interworking may result in a limited service capability.
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ae3dfca740c8c62772d38184c6500f19
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181 002
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8.3.4 Communication Barring (CB)
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ae3dfca740c8c62772d38184c6500f19
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181 002
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8.3.4.1 Definition
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The group of Communication Restriction Services includes two simulation services: • Outgoing Communications Barring (OCB). This service allows a user to bar certain categories of outgoing communications. The network shall provide the capability for a user to select a set of categories (e.g. identities or range of identities) for barring. The type of barring is chosen by the user at provision time, and shall be valid for all outgoing communications. The network shall provide the capability for the user to bar outgoing communications based on user defined identities or identity ranges. Barring of an outgoing communication for a specific identity, a number of specific identities, or a range of identities shall be dependent on an entry in a OCB identity list held in the network. This list shall either be a "black list" or "white list". A "black list" shall contain the identities or identity ranges to be barred by the network for outgoing communications. A "white list" shall contain the identities or identity ranges that shall be allowed by the network for outgoing communications, i.e. all identities not in the "white list" shall be barred. The ability of the served user to receive communications and to originate emergency communications shall be unaffected by OCB. This service description is based on the service description described in EN 301 082 [18] and EN 301 084 [19]. Incoming Communications Barring (ICB). This service allows a user to bar certain categories of incoming communications. The service also allows the user to have the barring of incoming communications activated always or only during certain conditions. The network shall provide the capability for a user to select from a set of categories (e.g. identities or range of identities) for barring. The type of barring is chosen by the user at provision time and may be valid for all incoming communications, or be limited to a specific service group or certain conditions (e.g. when the user is roaming). The ability of the served user to set-up outgoing communications shall be unaffected by ICB. The use of ICB, or a call identified as a callback to an emergency call, by a user that is not the PSAP, shall be precluded. ETSI ETSI TS 181 002 V2.2.5 (2007-11) 30
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ae3dfca740c8c62772d38184c6500f19
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181 002
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8.3.4.2 Service interactions with other PSTN/ISDN simulation services (NGN)
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ae3dfca740c8c62772d38184c6500f19
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181 002
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8.3.4.2.1 Diversion services
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8.3.4.2.1.1 Communication Forwarding Unconditional (CFU) If the OCB simulation service has already been activated, a request to activate the communication forwarding unconditional simulation service shall be rejected if the user's communication to the forwarded-to user would be barred by the OCB simulation service at the time of the activation attempt of the communication forwarding simulation service. If the communication forwarding unconditional simulation service was activated before the activation of the OCB simulation service, the OCB simulation service can still be activated. When the two services have already been activated, a request to invoke the communication forwarding unconditional simulation service shall be rejected if the forwarding party's communication to the forwarded-to party would be barred by the OCB simulation service at the time of the invocation attempt of the communication forwarding unconditional simulation service. 8.3.4.2.1.2 Communication Forwarding Busy (CFB) If the OCB simulation service has already been activated, a request to activate the communication forwarding busy simulation service shall be rejected if the forwarding party's communication to the forwarded-to party would be barred by the OCB simulation service at the time of the activation attempt of the communication forwarding simulation service. If the communication forwarding busy simulation service was activated before the activation of the OCB simulation service, the OCB simulation service can still be activated. When the two services have already been activated, a request to invoke the communication forwarding busy simulation service shall be rejected if the forwarding party's communication to the forwarded-to party would be barred by the OCB simulation service at the time of the invocation attempt of the communication forwarding busy simulation service. 8.3.4.2.1.3 Communication Forwarding No Reply (CFNR) If the OCB simulation service has already been activated, a request to activate the communication forwarding no reply simulation service shall be rejected if the forwarding party's communication to the forwarded-to party would be barred by the OCB simulation service at the time of the activation attempt of the communication forwarding simulation service. If the communication forwarding no reply simulation service was activated before the activation of the OCB simulation service, the OCB simulation service can still be activated. When the two services have already been activated, a request to invoke the communication forwarding no reply simulation service shall be rejected if the forwarding party's communication to the forwarded-to party would be barred by the OCB simulation service at the time of the invocation attempt of the communication forwarding no reply simulation service. 8.3.4.2.1.4 Communication Forwarding on Not Logged-in (CFNL) If the OCB simulation service has already been activated, a request to activate the communication forwarding no registration simulation service shall be rejected if the forwarding party's communication to the forwarded-to party would be barred by the OCB simulation service at the time of the activation attempt of the communication forwarding simulation service. If the communication forwarding on Not Logged-in simulation service was activated before the activation of the OCB simulation service, the OCB simulation service can still be activated. When the two services have already been activated, a request to invoke the communication forwarding on Not Logged-in simulation service shall be rejected if the forwarding party's communication to the forwarded-to party would be barred by the OCB simulation service at the time of the invocation attempt of the communication forwarding on Not Logged-in simulation service. 8.3.4.2.1.5 Communication Deflection (CD) If the OCB simulation service has been activated, a request to invoke the communication deflection simulation service shall be rejected if the deflecting party's communication to the deflected-to party would be barred by the OCB simulation service at the time of the invocation attempt of the communication deflection simulation service. ETSI ETSI TS 181 002 V2.2.5 (2007-11) 31
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ae3dfca740c8c62772d38184c6500f19
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181 002
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8.3.4.3 Interoperability with PSTN/ISDN
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The NGN shall support the interoperability of the CB service with PSTN/ISDN Supplementary Service CB and vice-versa. The scope of this interworking may result in a limited service capability.
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ae3dfca740c8c62772d38184c6500f19
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181 002
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8.3.5 Completion of Communications to Busy Subscriber (CCBS)
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ae3dfca740c8c62772d38184c6500f19
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181 002
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8.3.5.1 Definition
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The CCBS simulation service enables originating party, encountering a busy terminating party, to have the communication completed without having to make a new communication attempt when the terminating party becomes free. When originating party requests the CCBS simulation service, the network will monitor for terminating party becoming free. When terminating party becomes free then the network will wait a short time in order to allow the resources to be re- used for originating a communication. If the resources are not re-used by terminating party within this time, then the network will automatically inform originating party that terminating party has become free. Originating party can generate the CCBS communication to terminating party. When originating party accepts the CCBS recall, then the network will automatically generate a CCBS communication to terminating party. NOTE: A simulation service provided to terminating party which prevents the registration of CCBS requests is outside the scope of the present document. During CCBS recall, information shall be provided which indicates a CCBS recall. The information provided in the original communication attempt shall be included in the CCBS recall. This service description is based on the service description described in EN 300 357 [21].
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ae3dfca740c8c62772d38184c6500f19
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181 002
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8.3.5.2 Service interactions with other PSTN/ISDN simulation services (NGN)
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ae3dfca740c8c62772d38184c6500f19
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181 002
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8.3.5.2.1 Identification services
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ae3dfca740c8c62772d38184c6500f19
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181 002
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8.3.5.2.2 Anonymous Communication Rejection (ACR)
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A CCBS recall (from the network to the originating party) resulting from the completion of communications to busy subscribers shall not be rejected due to the application of the ACR simulation service. Assume the originating party connects to the terminating party and the terminating party activates the ACR simulation service or has activated the ACR simulation service: The ACR simulation service is activated by the terminating party after the originating party has activated the completion of communications to busy subscriber simulation service on the terminating party: • If the terminating party activates the ACR simulation service after the originating party has activated the completion of communications to busy subscriber simulation service on the terminating party, then the communication resulting from the completion of communications to busy subscriber simulation service shall be rejected if the originating party has restricted its identity due to the OIR simulation service.
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181 002
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8.3.5.2.3 Communication DIVersion (CDIV)
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CCBS recalls shall never be diverted. They shall be provided to the original originating party. CCBS can not be activated on a diverted communication. ETSI ETSI TS 181 002 V2.2.5 (2007-11) 32
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ae3dfca740c8c62772d38184c6500f19
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181 002
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8.3.5.2.4 Communication Waiting (CW)
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NOTE: For a waiting communication, terminating party is not considered as busy. If the Communication Waiting indication cannot be provided at the terminating party, originating party will receive busy indication and can invoke the CCBS simulation service to terminating party. CCBS requests in the terminating party's CCBS queue shall only be processed if there are no communications waiting.
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ae3dfca740c8c62772d38184c6500f19
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181 002
|
8.3.5.2.5 Communication HOLD (HOLD)
|
No impact, i.e. neither simulation service shall affect the operation of the other simulation service. NOTE 1: When receiving a CCBS communication indication, originating party may invoke the communication hold simulation service in order to make interface resources available for the establishment of the CCBS communication. NOTE 2: When originating party is busy or CCBS busy and is notified that terminating party is free, invocation of the communication hold simulation service will not result in the CCBS communication being established.
|
ae3dfca740c8c62772d38184c6500f19
|
181 002
|
8.3.5.2.6 Communication Barring (CB)
|
The originating party calls the terminating party who is busy, and then the originating party invokes CCBS. If the originating party then invokes OCB before the terminating party becomes free, the CCBS communication may be rejected due to the OCB invocation.
|
ae3dfca740c8c62772d38184c6500f19
|
181 002
|
8.3.5.2.7 Completion of Communications to Busy Subscriber (CCBS)
|
A user can be both an "originating party" and a "terminating party" simultaneously, i.e. that user can have activated the CCBS simulation service and have CCBS requests outstanding whilst at the same time that user can be the destination of CCBS requests from other users. If a user receives a CCBS recall while that terminating party's CCBS queue is being processed, then the CCBS recall shall take priority over the handling of the terminating party's CCBS queue. The handling of CCBS requests activated by this user shall have priority over the handling of CCBS requests activated by other users on this user. If one of the user's CCBS requests matures as a result, then the user shall be provided a CCBS recall or notification. The terminating party idle guard timer, if running, shall be cancelled.
|
ae3dfca740c8c62772d38184c6500f19
|
181 002
|
8.3.5.2.8 Advice Of Charge services (AOC)
|
Charging information can be provided for the original communication, and for the resulting CCBS communication.
|
ae3dfca740c8c62772d38184c6500f19
|
181 002
|
8.3.5.3 Interoperability with PSTN/ISDN
|
The NGN shall support the interoperability of the CCBS service with PSTN/ISDN Supplementary Service CCBS and vice-versa. The scope of this interworking may result in a limited service capability.
|
ae3dfca740c8c62772d38184c6500f19
|
181 002
|
8.3.6 Message Waiting Indication (MWI)
| |
ae3dfca740c8c62772d38184c6500f19
|
181 002
|
8.3.6.1 Definition
|
The MWI simulation service enables the network, upon the request of a controlling user to indicate to the receiving user, that there is at least one message waiting. The indication is sent to the receiving user when a message is deposited. Optionally, the network may send an indication to the user that there are no more unread message in the mail box. This indication may be send when the last unread message is read. NOTE: As an example, a voice message is stored by the network for a particular user. The network then provides the MWI to the user to indicate there is a message for retrieval. Having received this indication, the receiving user can subsequently access the mail box, to listen to the message. ETSI ETSI TS 181 002 V2.2.5 (2007-11) 33 The means by which the receiving user accesses and manages the mail box voice message service are outside the scope of the present document. This service description is based on the service description described in EN 300 650 [22].
|
ae3dfca740c8c62772d38184c6500f19
|
181 002
|
8.3.6.2 Service interactions with other services (NGN)
|
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