Provision of services in a communication system including an...

Details Provision of services in a communication system including an... Provision of services in a communication system including an...

2005-10-11

2005-10-11

Bui, Bing Q. (Department: 2642)

Telecommunications

Transmitter and receiver at same station

Radiotelephone equipment detail

C455S422100, C455S433000

Reexamination Certificate

active

06954654

ABSTRACT:
A communication system includes User Equipment (111), Radio Access Network (RAN) (121), a packet-switched domain (131), an IP Multimedia Subsystem (IMS) (141), a circuit-switched domain (151), a Domain Name System (DNS) (165), a Charging Gateway Function (CGF) (134), an EIR (135), a Transport Signaling Gateway (T-SGW) (146), and a Roaming Signaling Gateway (R-SGW) (147). The CS domain (151) includes an interworking Mobile Switching Center (iMSC) (201). The iMSC (201) translates the CS domain registration, call control, feature control, and feature invocation procedures associated with the access technology to standard SIP procedures. The media gateway (MGW) (173) under the control of the iMSC (201) converts the air interface media flow into a packet stream that is managed by SIP procedures within the IMS (141). The iMSC (201) thereby allows for interworking between circuit-switched and packet-switched domains for provision of services to subscribers.

REFERENCES:
patent: 6608832 (2003-08-01), Forslow
patent: 6751204 (2004-06-01), Foti et al.
patent: 6795444 (2004-09-01), Vo et al.
patent: 6810243 (2004-10-01), Torabi
patent: 6839323 (2005-01-01), Foti

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