Hi,
I'd like to route incoming calls in a PSTN Gateway originating from a CUCM (SIP) based upon the calling number.
Here's the scenario: we are using Standard Local RG to route call to the appropriate GW upon associated Device Pool. Within' the same Device Pool, some phone must go out the PSTN using FXO lines of the card slotted in WIC1, and some other phones must go through the FXO card in WIC2. So, the decision of which card to use has to be based on "which combinaison of Phone&DN places the call".
I configured an incoming voip dial-peer with answer-address, but I notice that it will use the Calling Number based on the directory number, and not the External Phone Number Mask. My problem is that DN are going to change often, but External Phone Number Mask will remain the 10 digit number (MLN) no matter what for phones on a specific Device Pool.
So, bottom line, I want to be able to route the calls to the appropriate voice-ports based upon the calling number being the External Phone Number Mask of the CUCM, or any transformation that would replace the Calling Number with a 10 digit number.
I was thinking of a Calling Party Transformation Pattern, which would have wildcards to include the range of all the DN that use the Standard Local Route Group, and then check the "Use Calling Party's External Phone Number Mask". I have not tested it yet, and am not sure it would work.
There are also a couple of Transformation CSS information in the SIP Trunk within' the CUCM
Any idea on the best way to achieve this ?
Thank you
