What type of Codec is used by the IP Desk Phone?

The choice of G.711, G.722, and G.729 as the correct codecs used by IP Desk Phones is based on their widespread adoption and compatibility in voice over IP (VoIP) systems.

G.711 is a standard codec that offers high-quality audio, operating at a bit rate of 64 kbps. It is known for its low latency and provides uncompressed audio, which is beneficial for maintaining call quality in typical network conditions.

G.722 is a wideband codec that operates at a higher frequency range than G.711, delivering better audio clarity, particularly for speech. This codec is also used in environments where audio fidelity is paramount.

G.729 is a compressed codec that operates at a lower bit rate of 8 kbps. It is especially useful in situations where bandwidth is limited, allowing for efficient transmission of voice data without significant loss of quality.

Together, these codecs provide a balanced approach to audio quality and bandwidth efficiency, making them suitable for IP Desk Phones in various communication environments.