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…

Question

Exhibit

Options

• AChange the partition of the translation pattern from none to pstn_pt.
• BDisable Use Calling Party's External Phone Number Mask on the route pattern.
• CEnable Force Authorization Code on the route pattern.
• DEnable Use Calling Party's External Phone Number Mask on the translation pattern.

• A
  12% (3)
• B
  77% (20)
• C
  8% (2)
• D
  4% (1)

Explanation

The 'Use Calling Party's External Phone Number Mask' option on a route pattern applies the External Phone Number Mask configured on the originating device or directory number to replace the calling party number before it is sent to the PSTN. Even though the translation pattern was configured to set the calling number to 9195551234, the route pattern's mask feature overwrites that value with the phone's own mask-hence the service provider receives a different number. Disabling this option on the route pattern allows the calling number set by the translation pattern to pass through unchanged to the PSTN.

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