https://app.knowbase.one/vault/rfc/docid/5989
RFC5502: The SIP P-Served-User Private-Header (P-Header) for the 3GPP IP Multimedia (IM) Core Network (CN) Subsystem
Network Working Group J. van Elburg Request for Comments: 5502 Ericsson Telecommunicatie B.V. Category: Informational April 2009 The SIP P-Served-User Private-Header (P-Header) for the...
https://app.knowbase.one/vault/rfc/docid/9208
RFC8498: A P-Served-User Header Field Parameter for an Originating Call Diversion (CDIV) Session Case in the Session Initiation Protocol (SIP)
Internet Engineering Task Force (IETF) M. Mohali Request for Comments: 8498 Orange Updates: 5502 February 2019 Category: Informational ISSN: 2070-1721 A P-Served-User Head...