M00002442
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TIA-873.003 Revision B, June 1, 2009 All-IP Core Network Multimedia Domain; IP Multimedia Subsystem – IP Multimedia Call Model; Stage 2
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Availability date: 09/09/2021
Description / Abstract: The present document specifies the IP Multimedia (IM) Call Model for handling of an IP multimedia session origination and termination for an IP Multimedia subscriber. The present document includes interactions between an Application Server and IP multimedia sessions. The IP Multimedia (IM) Subsystem stage 2 is specified [3] and the stage 3 for the IP multimedia call control based on SIP and SDP is specified in [5].