I'm having an issue with External Phone Number Masks in CUCM 8.6
Until recently our DID ranges were all in the 301-713-nnnn range. Using the EPNM worked successfully providing CallerID. We have now added some DIDs with the prefix 301-427.
I have set the Route List Detail Configuration to:
Use Calling Party's External Phone Number Mask* Off
Calling Party Transform Mask 3014279999
However, when I run debug isdn q931 on the gateway the Calling Party Number = '3017139999'.
It appears that the mask 3014279999 is being changed to 3017139999 by Call Manager, but I do not know where this is happening.
I do not have any translation or transformations set.
