7.7 Audio Codecs
Codec is an abbreviation of Compress-Decompress, capable of coding or decoding a digital data stream or
signal by implementing an algorithm. The object of the algorithm is to represent the high-fidelity audio signal
with a minimum number of bits while retaining the quality. This can effectively reduce the frame size and the
bandwidth required for audio transmission.
The audio codec that the phone uses to establish a call should be supported by the SIP server. When
placing a call, the IP phone will offer the enabled audio codec list to the server and then use the audio codec
negotiated with the called party according to the priority.
7.7.1 Supported Audio Codecs
The following table summarizes the supported audio codecs on IP phones:
7.7.2 Audio Codecs Configuration
The following table lists the parameters you can use to configure the audio codecs.
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