Channels vs Calls
--snipped from Michael Collins' post on the mailing list--
If you are curious as to why "show calls" and "show channels" returns such different information in the fs_cli - in an extreme, why "show calls" may return 0 while there are active calls, this will explain the difference.
A "channel" is just a single call leg, but a "call" is two channels bridged together.
So, dialing from one phone to another phone will yield 2 channels and 1 call.
You homework assignment tonight is to make several calls and experiment with these commands:
- show calls
- show channels
- show distinct_channels
Try calling from phone to phone as well as trying things like calling voicemail.