Implementing and Operating Cisco Collaboration Core Technologies: Choosing the Best Codec for Limited Bandwidth Resources

Choosing the Best Codec for Limited Bandwidth Resources

Question

When a remote office location is set up with limited bandwidth resources, which codec would allow the most voice calls with the limited bandwidth?

Answers

Explanations

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D.

https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/srnd/collab10/collab10/media.html

When a remote office location is set up with limited bandwidth resources, the codec that would allow the most voice calls with the limited bandwidth is G.729.

The G.729 codec is a low-bandwidth codec that compresses voice signals and uses only 8 kbps of bandwidth per call. This compression enables multiple calls to be transmitted simultaneously over the limited bandwidth connection.

In contrast, the G.711 codec uses 64 kbps of bandwidth per call and is considered a high-quality codec. While it provides better audio quality, it is not ideal for low-bandwidth connections.

The G.722 codec uses 48 kbps of bandwidth per call and provides better audio quality than G.729, but it is still not the best option for limited bandwidth connections.

The G.723 codec uses either 5.3 kbps or 6.3 kbps of bandwidth per call, but it is an older codec and is not widely used today.

Therefore, the correct answer is H. 729, as it is specifically designed for low-bandwidth connections and would allow the most voice calls with the limited bandwidth.