We are using asterisk v1-0-5/14/05 in production and testing asterisk cvs-head on another test server. We are using zap channels
(Digium TDM 400 for both) for all incoming and outgoing calls for both. We are using sip phones on the internal network. While all outbound calls work and all internal calls work (sip to sip), I have noticed that asterisk will periodically go offline for inbound calls for this interface (zap) on both systems. We usually find out because people calling report that the inbound number just rings and rings.
Restarting the server definately corrects the problem. I’ve also tried restarting asterisk but this doesn’t seem to work. Are there any log files which could help us isolate the problem. I’m also wondering if there might be a way to restart the zap channel interface. Finally any type of notification to let us know when this happens would be very helpful. I am a relative newbie to asterisk. TIA for any help that would be much appreciated.