RFC 3665:Session Initiation Protocol (SIP) Basic C...
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Call Flow


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... The call flows shown in this document were developed in the design of a SIP IP ...
... specifications. These call flows are based on the current version 2.0 of SIP in RFC ...
... 2]. Other RFCs also comprise the SIP standard but are not used in this set of basic call flows. Call flow ...
... call flows. Call flow examples of SIP interworking with the PSTN ...
... architecture, network, and protocol assumptions underlie the call flows in this document. Note that these assumptions are not requirements. They are outlined in this section so that they may be ...
... requirements. They are outlined in this section so that they may be taken into consideration and to aid in the understanding of the call flow examples. The authentication ...
... The authentication of SIP User Agents in these example call flows is performed using HTTP Digest as defined in [1 ...
... Some Proxy Servers in these call flows insert Record-Route headers ...


... Also note that Proxy 2 does not Record-Route in this call flow. Message Details ...


... SIP) Public Switched Telephone Network (PSTN) Call Flows", BCP 76, RFC 3666, December 2003. ...


... The authors wish to thank the following individuals for their participation in the review of this call flows document: Aseem Agarwal, Rafi Assadi, Ben Campbell, Sunitha Kumar, Jon Peterson, Marc Petit-Huguenin, Vidhi Rastogi, and Bodgey Yin Shaohua. ...



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