I would like to do some transformations to the service provider provisioned DDIs to match some internal extensions to specific external numbers. I was trying to use a voice translation-rule at the voice gateway but it is limited to 15 rules and I need more.
My questions are:
1st -> Can I configure translation patterns in the call manager to address this issue?
2nd -> If I use a voice translation-rule at the voice gateway can I do arithmetic operations; ex: add 1 to a digit? Is there some documentation to see how does it works?