Show Trunk Utilization?

I have a PRI and multiple SIP providers defined on my * server. I pay one of the sip providers based on the number of concurrent call paths I have, and I want a way to monitor concurrent calls on that provider.

I can use “core show channels” to show me how many active calls I have, but I need to find a way to determine that I have x calls going on sip trunk “a”.

I’m using munin to monitor my server, and it uses the asterisk manager interface. So, the perfect solution would be a way to do this kind of monitoring via manager.

Does anyone know a way to do this?

Hi, did you ever find a solution to this problem?