Additional Technical Information about SIP
- Henning Schulzrinne's site.
Henning Schulzrinne of Columbia University is one of the key authors of
the core SIP protocol, and many of the supporting RFCs and drafts, as
well as a key researcher in the area of multimedia IP. His SIP
web pages contain a wealth of additional information for developers and
other technically-oriented readers.
- The IETF SIP Working Group, and the SIPPING Working Group pages. The IETF is the standards body responsible for defining the SIP protocol, and the supporting RFCs and drafts.
- The SIP School Wiki. A community-maintained Wiki of information about SIP.
- The SIPFoundry Wiki.
While this is mostly oriented towards the open-source SIPX software
projects, there is some general technical information here, too.
- Tech-Invite. A Portal devoted to SIP and surrounding technologies.
- Predicting the use of SIP. 1890 prints by Carls Stauber; courtesy of Henry Sinnreich, formerly of MCI now at Pulver.com.
Related Protocols and Supporting Organizations
- IETF ENUM Working Group. Enum provides DNS mappings between E.164 (phone) numbers and various IP services, including SIP. (See also the ENUM Forum, responsible for establishing implementation procedures for implementing public and private ENUM within the US.)
- IETF PINT Working Group. Pint address conneciton arrangements through which Internet applications can request and enrich PSTN telephony services.
SIP for Mobile Applications
Other Product Directories
Other Communications Industry Links
- IAB - the Internet Architecture Board
- IESG - The internet Engineering Steering Group
- ETSI - the European Telecommunication Standards Institute
- ETSI TIPHON - An ETSI Project for "Telecommunicaitons and Internet Protocol Harmonization Over Networks"