642-437 Sample Question: 8

Question: 8

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.

Answer: D