After several days of trying the group was able to process the PUBLISH request for OpenSIPS using a prototype code for SIPS client. The group's aim was to develop a C++ base code for a sip client to send a PUBLISH request to the OpenSIPS proxy server. The group consulted several RFC's (Request for Comments) related to presence support in SIP.
The following is the partial list of the RFC documentations:
1. RFC 3856: A Presence Event Package for the Session Initiation Protocol (SIP)
2. RFC 3857: A Watcher Information Event Template-Package for
the Session Initiation Protocol (SIP)
3. RFC 3858: An Extensible Markup Language (XML) Based Format for Watcher
Information
4. RFC 3863: Presence Information Data Format (PIDF)
RFC 3863 was very helpful in creating the standard xml format for sending presence related information.
The next task is to be able to process the subscription request and understand it process.
For any questions you can contact the group at opensips101@gmail.com
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