Internet Wideband Audio Codec (codec)
Data for Reachability of Inter/tra-NetworK SIP (drinks)
Emergency Context Resolution with Internet Technologies (ecrit)
Geographic Location/Privacy (geopriv)
Multiple AoR reachabiliTy InformatioN Indication (martini)
Media Server Control (mediactrl)
Multiparty Multimedia Session Control (mmusic)
Peer-to-Peer Session Initiation Protocol (p2psip)
SIP Common Log Format (sipclf)
Session Initiation Protocol Core (sipcore)
Session PEERing for Multimedia INTerconnect (speermint)
Extensible Messaging and Presence Protocol (xmpp)
Groups that did not meet at IETF 77
Basic Level of Interoperability for SIP Services (bliss)
Telephone Number Mapping (enum)
SIP for Instant Messaging and Presence Leveraging Extensions (simple)
Speech Services Control (speechsc)
Centralized Conferencing (xcon)