I hvae tried both the standalone Red5 server and now openfire. Both connect successfully to the sip server and can make calls but i cannot receive any calls. There is nothing at my end when i m called :(. I tried calling from gtalk2voip which gives the following error:
Charged time: 0 secs. Reason = EndedByRemoteDeclined.
Ohh and yes we have asterisk on our server.