IMS to PSTN/CS interworking

Author

Marsic, B. ; Borosa, T. ; Pocuca, S.

Author_Institution

Siemens d.d., Zagreb, Croatia

Volume

2

fYear

2003

Firstpage

701

Abstract

Internet protocol (IP) multimedia subsystem (IMS) has been added to the universal mobile telecommunications system (UMTS) core network starting from 3GPP UMTS Release S (see [13]). Now, UMTS network consists of the following three domains: Circuit Switched (CS), Packet Switched (PS) and IP multimedia subsystem (IMS). IMS needs connectivity to old networks like CS networks and public switching telephone networks (PSTN). For that purposes, some interworking must be done. The IMS provides services for any type of IP communication whether it is voice or video telephony, video streaming, instant and multimedia messaging, multimedia gaming or virtual-reality. This paper describes connectivity between user in the IMS network and user in the PSTN/CS network.

Keywords

3G mobile communication; IP networks; circuit switching; multimedia communication; packet switching; switched networks; telephone networks; videotelephony; voice communication; IP communication; IP multimedia subsystem; Internet protocol; PSTN; UMTS core network; circuit interworking; circuit switching; multimedia gaming; multimedia messaging; packet switching; public switched telephone network; universal mobile telecommunication system; video streaming; video telephony; voice communication; 3G mobile communication; Communication switching; IP networks; Multimedia systems; Packet switching; Protocols; Streaming media; Switching circuits; Telecommunication switching; Telephony;

fLanguage

English

Publisher

ieee

Conference_Titel

Telecommunications, 2003. ConTEL 2003. Proceedings of the 7th International Conference on

Conference_Location

Zagreb, Croatia

Print_ISBN

953-184-052-0

Type

conf

DOI

10.1109/CONTEL.2003.176988

Filename

1215898