I have a site where every 10 days or so I start getting complaints that outbound dialing is failing. Typically the far end never starts ringing. And its inconsistent. Some folks are dialing ok but others not. CPU and memory are fine. I don't see the router under any kind of DOS attack. I would like to just syslog some kind of debug to troubleshoot this better at the next occurance. What level of debug would be recommended? It uses SIP to communicate with the PSTN provider. And internally it is a SIP trunk (CUCM sees it as a SIP voice trunk at a particular IP address. Not an MGCP gateway or other.) Currently I am running debug ccsip messages and the CPU is staying at a comfortable 5% with a very occasional brief peak to 25% or so.