How we will add a dial-peer for VoIP termination provider "VoIP termination provider".
Go to Dial-peers -> Terminators and add a new one:
Set name = "VoIP termination provider".
Choose Telephony -> billing pack = "zero". "zero" - is predefined billing pack, which has price 0 for all destinations.
Press "Save".
Now you'll see additional fields for configuring.
Press "+" on row Technologies -> H323:
Set host = 55.66.77.88.
Press "Save".