On Sat, 2003-11-01 at 11:57, Michel Py wrote:
but on other SIP phones such as the popular $70 Grandstream if you know the IP address and port of the remote SIP phone you want to join you can dial it directly.
Michel.
We use the Grandstream via sipphone.com for office to office calls. It is using the RTSP. Just doing some cheap testing before we integrate this into our Soft Switch, PBX and the PSTN. The Sipphone has a "STUN" server function that makes doing SIP behind NAT/PAT workable. I am a little hazy on its function as I am testing and wanted the phones on public IP's. Seems to keep the NAT/PAT translations constant by communicating with a remote server. Some users are doing SIP with this phone without problems behind NAT/PAT. -- James Edwards Routing and Security jamesh@cybermesa.com At the Santa Fe Office: Internet at Cyber Mesa 505-988-9200 SIP:747-669-1965