Audio Codecs; Supported Audio Codecs - Yealink SIP-T2 Series Administrator's Manual

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Note: It works only if "voice.tone.country" is set to Custom. If you want to disable this warning tone, set it

Settings->Tones->Auto Answer

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.

Audio Codecs Configuration

Supported Audio Codecs

The following table summarizes the supported audio codecs on IP phones:

Audio Features

Packetization Time