{"draft":"draft-ietf-sip-refer-07","doc_id":"RFC3515","title":" The Session Initiation Protocol (SIP) Refer Method ","authors":["R. Sparks"],"format":["ASCII","HTML"],"page_count":"23","pub_status":"PROPOSED STANDARD","status":"PROPOSED STANDARD","source":"Session Initiation Protocol","abstract":" This document defines the REFER method.  This Session Initiation Protocol (SIP) extension requests that the recipient REFER to a resource provided in the request.  It provides a mechanism allowing the party sending the REFER to be notified of the outcome of the referenced request.  This can be used to enable many applications, including call transfer. In addition to the REFER method, this document defines the refer event package and the Refer-To request header.  [STANDARDS-TRACK]","pub_date":"March 2003","keywords":["SIP","Session Initiation Protocol","resource request","call transfer"],"obsoletes":[],"obsoleted_by":[],"updates":[],"updated_by":["RFC7647","RFC8217"],"see_also":[],"doi":"10.17487\/RFC3515","errata_url":"https:\/\/www.rfc-editor.org\/errata\/rfc3515"}