PSTN/ISDN Emulation Subsystem

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Presentation transcript:

PSTN/ISDN Emulation Subsystem Philip Mart (Marconi) TISPAN Rapporteur philip.mart@marconi.com 22-23 June 2004 TISPAN-3GPP Workshop - Sophia-Antipolis

TISPAN-3GPP Workshop - Sophia-Antipolis Agenda Approval of agenda and Documents (s1) Workshop objectives (s1) 3GPP and TISPAN organisation (s1) NGN Architecture & Release 1 definition (s2) IMS architecture and capabilities (s2) Issues related to reuse of IMS for NGN (s3-s4) Support of PSTN/ISDN service emulation (s5) Ongoing activities and Workplan (s5) Future cooperation/interactions (s6) Wrap-up and closure (s6) 22-23 June 2004 TISPAN-3GPP Workshop - Sophia-Antipolis

TISPAN-3GPP Workshop - Sophia-Antipolis PSTN/ISDN Emulation Intended to provide the current services to PSTN/ISDN users with an unchanged presentation PSTN/ISDN emulation sits within the context of the same NGN Transport, Resource Access Control, Network Attachment and Common Functions. A functional architecture to express the relationships with NGN functions is being developed which does not restrict implementations 22-23 June 2004 TISPAN-3GPP Workshop - Sophia-Antipolis

Possible Functional architectures Suggestions so far Use IMS functions as Functional Entities to model PSTN Use Softswitch and Media Gateway components Could also start from IN and ISDN functional models 22-23 June 2004 TISPAN-3GPP Workshop - Sophia-Antipolis

Subsystem specific requirements Provide essential services required by regulators Comply with New Framework directives including Privacy and Data Protection Maintain functional splits required by regulation of PSTN and ISDN Maintain Interconnect to other networks Provide a path for graceful migration of PSTN to NGN Maintain services based on IN Maintain speech quality for real call mix Continue to support legacy terminals Allow users to benefit from NGN services 22-23 June 2004 TISPAN-3GPP Workshop - Sophia-Antipolis