Implementing and Operating Cisco Collaboration Core Technologies (CLCOR) — Question 38

A remote office has a less-than-optimal WAN connection and experiences packet loss, delay, and jitter. Which VoIP codec should be used in this situation?

Answer options

• A. G.711alaw
• B. iLBC
• C. G.722.1
• D. G.729A

Correct answer: B

Explanation

The iLBC codec is specifically designed to perform well in challenging network conditions, making it ideal for situations with packet loss and jitter. In contrast, G.711alaw and G.722.1 require more bandwidth and are less resilient to poor network conditions, while G.729A is optimized for low bandwidth but does not handle packet loss as effectively as iLBC.