{"draft":"draft-ietf-sip-replaces-05","doc_id":"RFC3891","title":" The Session Initiation Protocol (SIP) \"Replaces\" Header ","authors":["R. Mahy","B. Biggs","R. Dean"],"format":["ASCII","HTML"],"page_count":"16","pub_status":"PROPOSED STANDARD","status":"PROPOSED STANDARD","source":"Session Initiation Protocol","abstract":" This document defines a new header for use with Session Initiation Protocol (SIP) multi-party applications and call control.  The Replaces header is used to logically replace an existing SIP dialog with a new SIP dialog.  This primitive can be used to enable a variety of features, for example: \"Attended Transfer\" and \"Call Pickup\".  Note that the definition of these example features is non-normative.  [STANDARDS-TRACK]","pub_date":"August 2004","keywords":["SIP","Session Initiation Protocol","multi-party applications","call control"],"obsoletes":[],"obsoleted_by":[],"updates":[],"updated_by":[],"see_also":[],"doi":"10.17487\/RFC3891","errata_url":"https:\/\/www.rfc-editor.org\/errata\/rfc3891"}