Refer to the exhibit. An administrator is migrating a PBX telephony system to a VoIP solution using
a fixed numbering plan. The extension numbers and PSTN DIDs cannot be changed. Which of the
following methods can be used in order to reach the individual extensions at Site B when called
via the PSTN?

A.
The administrator can replace the last three digits of the DID with xxx to cover the individual
extensions.

B.
The administrator can replace the last three digits of the DID with xxx and use translation rules
to map the individual extensions.

C.
The administrator needs to implement an auto-attendant solution where individual extensions

can be dialed.

D.
The administrator needs to map the last four digits in the DID to the extension numbers using
translation rules.