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. Disable Use Calling Party’s External Phone Number Mask on the route pattern.
C. Enable Force Authorization Code on the route pattern.
D. Enable Use Calling Party’s External Phone Number Mask on the translation pattern.
