Iâ€™m running Asterisk 1.4 on CentOS using a single SIP Trunk.
Currently I can make in and outgoing calls just fine, however if I do not make any calls or receive any calls usually within 15 minutes, I can not receive incoming calls on the first several trys (usually 1~3). Then for what ever reason the system starts working. Iâ€™ve watched the CLI to see if the call is even coming in and it is not. So Iâ€™m thinking their must be some kind of issue with my SIP trunk.
On the debug I did notice this, and I wasnâ€™t sure if it was something of interest:
NOTICE: chan_sip.c:12289 handle_response_register: Outbound Registration: Expiry for X.X.X.X is 300 sec (Scheduling reregistration in 285 s)
(of course IP Address was masked out)
If I make an outgoing call and hang-up then I can receive incoming calls.
As well Iâ€™ve tested this on multiple networks with the same results (DSL, EVDO and Cable)