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1. Interworking for IMS
Interworking procedures are provided to guarantee interoperability between IMS and non-IMS users. These procedures concern interworking between IMS-type networks and other existing networks such as circuit-type networks (GSM, PSTN) and networks using classic SIP signaling (classic IETF SIP stack).
acronyms are explained in the Acronyms and Abbreviations table at the end of this article.
1.1 IMS malfunction – circuit domain
Interworking between the IMS domain and the circuit domain enables a session to be established from one domain to the other.
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Interworking for IMS
Service opportunities
Standards and norms
- IP Multimedia Core Network Subsystem (IMS) Multimedia Telephony Service and supplementary services ; Stage 1 - 3GPP TS 22.173 -
- IP Multimedia System (IMS) messaging ; Stage 1 - 3GPP TS 22.340 -
- Network architecture - 3GPP TS 23.002 -
- Organization of subscriber data - 3GPP TS 23.008 -
- General Packet Radio Service (GPRS) ; Service description - 3GPP TS 23.060 -
- Presence service...
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