{"draft":"draft-ietf-sip-refer-with-norefersub-04","doc_id":"RFC4488","title":"Suppression of Session Initiation Protocol (SIP) REFER Method Implicit Subscription","authors":["O. Levin"],"format":["ASCII","HTML"],"page_count":"8","pub_status":"PROPOSED STANDARD","status":"PROPOSED STANDARD","source":"Session Initiation Protocol","abstract":"The Session Initiation Protocol (SIP) REFER extension as defined in\r\nRFC 3515 automatically establishes a typically short-lived event\r\nsubscription used to notify the party sending a REFER request about\r\nthe receiver's status in executing the transaction requested by the\r\nREFER.  These notifications are not needed in all cases.  This\r\nspecification provides a way to prevent the automatic establishment\r\nof an event subscription and subsequent notifications using a new\r\nSIP extension header field that may be included in a REFER request.  [STANDARDS-TRACK]","pub_date":"May 2006","keywords":[],"obsoletes":[],"obsoleted_by":[],"updates":[],"updated_by":[],"see_also":[],"doi":"10.17487\/RFC4488","errata_url":null}