My phones go out then a few minutes later they come back on, then go back out. This started after I got a new modem from AT&T, they’ve tested it and said nothing is wrong with the modem, and Internet in general is working fine.
In the logs I see this message a lot:
[2012-07-31 17:47:02] WARNING: chan_sip.c:3639 retrans_pkt: Retransmission timeout reached on transmission [email protected]:5060 for seqno 102 (Critical Request) – See https://wiki.asterisk.org/wiki/display/AST/SIP+Retransmissions
Packet timed out after 6400ms with no response
As well as this:
[2012-07-31 11:55:17] WARNING app_dial.c: Unable to create channel of type ‘SIP’ (cause 20 - Unknown)
[2012-07-31 11:55:17] VERBOSE app_dial.c: == Everyone is busy/congested at this time (1:0/0/1)
Any ideas what is causing this?