{"draft":"draft-munakata-iptel-isub-type-04","doc_id":"RFC4715","title":"The Integrated Services Digital Network (ISDN) Subaddress Encoding Type for tel URI","authors":["M. Munakata","S. Schubert","T. Ohba"],"format":["ASCII","HTML"],"page_count":"14","pub_status":"INFORMATIONAL","status":"INFORMATIONAL","source":"IETF - NON WORKING GROUP","abstract":"Without a tel URI parameter to carry an encoding type of Integrated\r\nServices Digital Network (ISDN) subaddress, interworking between ISDN\r\nUser Part (ISUP) network and a Session Initiation Protocol (SIP)\r\nnetwork is impossible in some cases.  To solve this problem, this\r\ndocument specifies a new optional tel URI parameter to carry the\r\nencoding type of ISDN subaddress.  This memo provides information for the Internet community. ","pub_date":"November 2006","keywords":["uniform resource identifier","isup","isdn user part"],"obsoletes":[],"obsoleted_by":[],"updates":[],"updated_by":[],"see_also":[],"doi":"10.17487\/RFC4715","errata_url":null}