Quote Originally Posted by zcnkac View Post
I have modified my asterisk to measure how long it takes to register with the SIP server (usually central01). Over the past two weeks, I have seen spikes of up to 15 seconds that happen at least once a day. Even today after the database server maintenance, I had a spike of 14 seconds to west01. I have had better luck with west01 excepting today, with a spike of 6 seconds.

I experienced a 'not in service' message once. As has been previously mentioned, a delayed database lookup can cause this and also latency in registrations.
Yeah it definitely could. 15 seconds is still within the industry standard for registrations though, so I wouldn't worry about that much. It's a lot more tolerant.

Incoming calls are different since a 3rd party will set their own timeouts before they consider failure.

We'll continue to keep an eye on things to see if there are any new load spikes like the handful we saw causing failed calls.