How is this issue resolved?

Refer to the exhibit.

For long-distance calls, users must prefix their dialed number with “91.” The translation pattern was created to strip the 91 as the PSTN expects a 10- digit number. The PSTN also requires the calling number to be set to 9195551234. However, the service provider has said calls with a different calling number are being received .

How is this issue resolved?
A . Change the partition of the translation pattern from none to pstn_pt.
B . Enable Force Authorization Code on the route pattern.
C . Disable Use Calling Party’s External Phone Number Mask on the route pattern.
D . Enable Use Calling Party’s External Phone Number Mask on the translation pattern.

View Answer

Answer: C