I don't have many knowleage about CCM and gateway,
so when there are some problems. I'm confused what I should do.
I want to know about some trouble-shooting method.
1. how can I check send and receive packets from voice gateway with debug command.
2. What should I check if incoming call is not made.
3. What should I check if outcoming call is not made.
4. What should I check if both of call is not made.
Thanks in advance.
most common commands are
debug isdn q931
debug voip ccapi inout
There are plenty more but are more specific per protocol, interface used and kind of problem you have.
You can search the guides for debug commands on CCO depending of the platform you have so you can understand them.
if this helps, please rate