Is there anything special that anyone here has had to do to get an Aastra phone (on the Internet) to talk to Asterisk behind a PIX firewall?<br><br>Ports 10000-20000 UDP are open on the PIX and forwarding to the Asterisk server. The Asterisk server's
RTP.CONF is set to use 10000-20000. The phone registers, and will place AND receive calls, however, no audio is passed. The phone is an Aastra 9133i.<br>