Set up Callback
Callback feature allows callers to hang up and get called back to the PBX. Callback feature could reduce the cost for the users who work out of the office using their own mobile phones.
Set up Callback
Add a Callback rule and set Inbound Route destination to the Callback rule.
Note: Make sure that the Caller ID service is enabled on the callback trunk. If the PBX cannot recognize the inbound caller ID, callback will fail.