Occasionally calls don't come through/go out[with log]

Im using PBX in a flash with Google voice for a few months just for testing 4g service and the results went well except every few days or so I get a few hours of no calls getting through either on wifi or 4g. I’ve tried tons of settings, stun servers, different configurations, etc. but no luck.

Here’s what has come up in debug logs files during this “black out” that seems relevant or different than usual:


chan_sip.c:9276 find_call: That’s odd… Got a response on a call we don’t know about. Callid 6bc142da30f2e38f707530d365747880@50.*******:5060

[2013-10-04 15:50:15] DEBUG[17244]: chan_sip.c:28142 handle_request_do: Invalid SIP message - rejected , no callid, len 1045


[2013-10-04 16:10:57] NOTICE[1776] chan_sip.c: Peer ‘159*’ is now UNREACHABLE! Last qualify: 0
[2013-10-04 16:10:57] NOTICE[1776] chan_sip.c: Peer ‘159*’ is now UNREACHABLE! Last qualify: 0
[2013-10-04 16:15:03] WARNING[1769] res_xmpp.c: JABBER: socket read error
[2013-10-04 16:15:03] WARNING[1769] res_xmpp.c: JABBER: socket read error
[2013-10-04 16:16:06] ERROR[1769] res_xmpp.c: No XMPP connection available when trying to connect client ‘ggmailcom’
[2013-10-04 16:16:06] ERROR[1769] res_xmpp.c: No XMPP connection available when trying to connect client 'g
gmailcom’
[2013-10-04 16:16:16] NOTICE[1776] chan_sip.c: Peer ‘159*’ is now Reachable. (1367ms / 2000ms)
[2013-10-04 16:16:16] NOTICE[1776] chan_sip.c: Peer ‘159*’ is now Reachable. (1367ms / 2000ms)

The event at 16:10 appears to be a network outage, or an overload, causing too many packets to be dropped. That needs to be fixed by reducing the network load, fixing any poor quality links, and possibly prioritising SIP in the routers.