IAX2 Trunk Ploblem

(6.12.65-32 )
New problem with VOIP via IAX2. I get a fast busy on my end and the called number rings.

[2016-08-10 10:52:03] VERBOSE[25328][C-00000001] app_dial.c: – Called IAX2/VOIPms/1203979xxx
[2016-08-10 10:52:03] VERBOSE[23839][C-00000001] chan_iax2.c: – Call accepted by 107.6.67.237:4569 (format ulaw)
[2016-08-10 10:52:03] VERBOSE[23839][C-00000001] chan_iax2.c: – Format for call is (ulaw)
[2016-08-10 10:52:04] VERBOSE[25328][C-00000001] app_dial.c: – IAX2/VOIPms-15062 is making progress passing it to SIP/310-00000001
[2016-08-10 10:52:07] VERBOSE[25328][C-00000001] app_dial.c: – IAX2/VOIPms-15062 is ringing
[2016-08-10 10:52:07] VERBOSE[25328][C-00000001] app_dial.c: – IAX2/VOIPms-15062 is making progress passing it to SIP/310-00000001
[2016-08-10 10:52:18] VERBOSE[25328][C-00000001] app_dial.c: – IAX2/VOIPms-15062 is ringing
[2016-08-10 10:52:18] VERBOSE[25328][C-00000001] app_dial.c: – IAX2/VOIPms-15062 is making progress passing it to SIP/310-00000001
[2016-08-10 10:52:18] VERBOSE[25328][C-00000001] app_dial.c: – IAX2/VOIPms-15062 answered SIP/310-00000001
[2016-08-10 10:52:18] VERBOSE[25328][C-00000001] bridge_channel.c: – Channel SIP/310-00000001 joined ‘simple_bridge’ basic-bridge
[2016-08-10 10:52:18] VERBOSE[25332][C-00000001] bridge_channel.c: – Channel IAX2/VOIPms-15062 joined ‘simple_bridge’ basic-bridge
[2016-08-10 10:52:29] WARNING[23853] chan_sip.c: Retransmission timeout reached on transmission a6d9e9aa31dd2127 for seqno 9550 (Critical Response) – See https://wiki.asterisk.org/wiki/display/AST/SIP+Retransmissions
Packet timed out after 10752ms with no response
[2016-08-10 10:52:29] WARNING[23853] chan_sip.c: Hanging up call a6d9e9aa31dd2127 - no reply to our critical packet (see https://wiki.asterisk.org/wiki/display/AST/SIP+Retransmissions).
[2016-08-10 10:52:29] VERBOSE[25328][C-00000001] bridge_channel.c: – Channel SIP/310-00000001 left ‘simple_bridge’ basic-bridge
[2016-08-10 10:52:29] VERBOSE[25332][C-00000001] bridge_channel.c: – Channel IAX2/VOIPms-15062 left ‘simple_bridge’ basic-bridge
[2016-08-10 10:52:29] VERBOSE[25332][C-00000001] chan_iax2.c: – Hungup ‘IAX2/VOIPms-15062’

It looks a problem from your network.

It’s a stupid question, but did you go to the two links that the error messages recommended? They are pretty complete when it comes to the source of these problems.

Since it was IAX I didn’t.

There are normally two legs to Asterisk conversations, in your case one is IAX2 and one to your SIP/310

cat /var/log/asterisk/full|grep -E “[25328]|[23839]”|less

to see the full story.

the [23853] call would seem to be spurious and related to another call

cat /var/log/asterisk/full|grep -E “[25853]”

Perhaps extension 310 is being forwarded/followme’ed