Exchange protocol for combinational multimedia services

Details Exchange protocol for combinational multimedia services Exchange protocol for combinational multimedia services

2011-05-31

2011-05-31

Ho, Duc C (Department: 2465)

Multiplex communications

Pathfinding or routing

Combined circuit switching and packet switching

C370S354000, C370S466000

Reexamination Certificate

active

07953068

ABSTRACT:
A method of transporting image or video information between end user terminals via a packet switched network whilst a circuit switched connection is established between the end users includes establishing a circuit switched connection between a plurality of end user terminals for carrying voice traffic. The method also includes using the. Message Session Relay Protocol (MSRP) to encapsulate image or video information transmitted between end user terminals via a packet switched network, where MSRP related traffic is routed between said end user terminals via one or more MSRP enabled nodes. Additionally, the method includes installing service policies into the or at least one MSRP node from a session initiation protocol (SIP) application server (AS) located in the control-plane of an IMS network and checking multimedia service requests against the installed policies to control end user terminal access to certain packet based services.

REFERENCES:
patent: 7167470 (2007-01-01), Bailey et al.
patent: 2004/0196867 (2004-10-01), Ejzak et al.
B. Campbell et al: “Instant Message in SIMPLE” Simple Working Group, Jun. 30, 2003 , pp. 1-57, XP015003375, abstract, pp. 4-15, pp. 19, 23, 28.
“Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); IP Multimedia Subsystem (IMS); Stage 2 (3GPP TS 23.288 version 5.6.0 Release 5); ETSI TS 123 228” ETSI Standards, European Telecommunications Standards Institute, Sophia-Antipo, FR, vol. 3-SA2, No. V560 Sep. 2002, XP014007876 ISSN: 0000-0001 pp. 8-12.

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