John Millican
2014-Jan-02 15:49 UTC
[asterisk-users] Phone -> NAT/FIREWALL -> Internet -> NAT/Firewall-> Asterisk
Hello, CentOS 6.x and Asterisk 11.x I have an interesting, to me at least, situation. Using a Polycom 501(also tried with X-Lite). I have set up Asterisk to accept registration from the Polycom and it registers successfully but then withing 30 seconds on the CLI I get the message that the Polycom is unreachable. The phone still shows that it is registered and if I try to place a call from the phone to my Cell, my cell rings once and then stops. I get a packet retransmission error: WARNING[1303]: chan_sip.c:4174 retrans_pkt: Retransmission timeout reached on transmission 689874757 at 192.168.0.100 for seqno 2 (Critical Response) Followed by: n_sip.c:4203 retrans_pkt: Hanging up call xxxxxxxxxx at 192.168.0.100 - no reply to our critical packet I am "assuming" that there is a problem with NAT. I have externip set in sip.conf. Any pointers to what I am missing? Thanks, JohnM