Asterisk installed on Linux server by other admin.
I am trying to find out which communication protocol/technology is currently using on Asterisk? Eg: isdn, voip, acd, etc. I dont know which one is using.
The line connected on BT with ISDN or T1 Card on the server.
There are a lot of files in
Which config file do I need to look at and detail that connect to BT line?