I have different trunks selected for different users by having them prepend a number in their ATA dialing string. How can I select a particular trunk for callback OR prepend a number to the number found in caller id to call back?
Thanks
I have different trunks selected for different users by having them prepend a number in their ATA dialing string. How can I select a particular trunk for callback OR prepend a number to the number found in caller id to call back?
Thanks