At 03:22 PM 3/16/2003, Jan Janak wrote: >Hello, > >Unfortunately there are no such documents. You might look into sources of >pa module (sip_router/modules/pa). > >Additional information regarding SIP and presence can be found here: >http://www.jdrosen.net/ietf.html Better than that, there is http://www.iptel.org/ietf/presence/ -Jiri