{"draft":"draft-ietf-sipping-basic-call-flows-02","doc_id":"RFC3665","title":" Session Initiation Protocol (SIP) Basic Call Flow Examples ","authors":["A. Johnston","S. Donovan","R. Sparks","C. Cunningham","K. Summers"],"format":["ASCII","HTML"],"page_count":"94","pub_status":"BEST CURRENT PRACTICE","status":"BEST CURRENT PRACTICE","source":"Session Initiation Proposal Investigation","abstract":" This document gives examples of Session Initiation Protocol (SIP) call flows.  Elements in these call flows include SIP User Agents and Clients, SIP Proxy and Redirect Servers.  Scenarios include SIP Registration and SIP session establishment.  Call flow diagrams and message details are shown. ","pub_date":"November 2003","keywords":["user agent","client proxy","redirect"],"obsoletes":[],"obsoleted_by":[],"updates":[],"updated_by":[],"see_also":["BCP0075"],"doi":"10.17487\/RFC3665","errata_url":"https:\/\/www.rfc-editor.org\/errata\/rfc3665"}