Jonathan D. Rosenberg

Session Initiation Protocol (SIP) Extension for Instant Messaging

D. Gurle, C. Huitema, Ben Campbell, 2002, RFC.

SIMPLE Made Simple: An Overview of the IETF Specifications for Instant Messaging and Presence Using the Session Initiation Protocol (SIP)

Jonathan D. Rosenberg, 2013, Request for Comments.

Common Gateway Interface for SIP

Jonathan Lennox, Jonathan D. Rosenberg, H. Schulzrinne, 2001, RFC.

Best Current Practices for Third Party Call Control (3pcc) in the Session Initiation Protocol (SIP)

Henning Schulzrinne, Jon Peterson, Gonzalo Camarillo, 2004, RFC.