Paul Kyzivat

RFCs

rfc3840 Aug 2004 Indicating User Agent Capabilities in the Session Initiation Protocol (SIP)
rfc3841 Aug 2004 Caller Preferences for the Session Initiation Protocol (SIP)
rfc4032 Mar 2005 Update to the Session Initiation Protocol (SIP) Preconditions Framework
rfc4480 Jul 2006 RPID: Rich Presence Extensions to the Presence Information Data Format (PIDF)
rfc4596 Jul 2006 Guidelines for Usage of the Session Initiation Protocol (SIP) Caller Preferences Extension
rfc5407 Dec 2008 Example Call Flows of Race Conditions in the Session Initiation Protocol (SIP)
rfc5547 May 2009 A Session Description Protocol (SDP) Offer/Answer Mechanism to Enable File Transfer
rfc5628 Oct 2009 Registration Event Package Extension for Session Initiation Protocol (SIP) Globally Routable User Agent URIs (GRUUs)
rfc6337 Aug 2011 Session Initiation Protocol (SIP) Usage of the Offer/Answer Model
rfc7405 Dec 2014 Case-Sensitive String Support in ABNF
rfc7462 Mar 2015 URNs for the Alert-Info Header Field of the Session Initiation Protocol (SIP)
rfc7865 May 2016 Session Initiation Protocol (SIP) Recording Metadata
rfc8068 Feb 2017 Session Initiation Protocol (SIP) Recording Call Flows