Hello all - I have been having an issue where my phones (Cisco 7960 and Sipura SPA-841) only receive calls for about 5 mins after they are turned on, then they must be rebooted to start receiving again. They make outgoing calls with no problem…
I am pretty sure it is an issue with my Asterisk server being that it is happening with both phones.
Any ideas would be greatly appreciated!
Asterisk DEBUG info
SIP/2.0 400 Bad Request
Via: SIP/2.0/UDP 66.173.xxx.xxx:5060;branch=z9hG4bK2227f58f;rport
From: “Unknown” sip:Unknown@66.173.xxx.xxx;tag=as6131fdc9
Date: Tue, 29 Nov 2005 09:45:44 GMT
Warning: 399 Bad Request - 'Invalid SDP information’
CSeq: 102 NOTIFY