Yealink W53P

Audio Features
169
Note: It works only if “voice.tone.country” is set to Custom. If you want to disable this warning tone, set
it to 0.
Permitted
Values
String
Default Blank
Web UI Settings->Tones->Busy
Parameter voice.tone.callwaiting <y0000000000xx>.cfg
Description
It customizes the call waiting tone.
The value format is Freq/Duration. For more information on the value format, refer to the parameter
“voice.tone.dial”.
Note: It works only if “voice.tone.country” is set to Custom. If you want to disable this warning tone, set
it to 0.
Permitted
Values
String
Default Blank
Web UI Settings->Tones->Call Waiting
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.
Topics
Supported Audio Codecs
Audio Codecs Configuration
Supported Audio Codecs
The following table summarizes the supported audio codecs on IP phones:
Codec Algorithm Reference Bit Rate Sample Rate Packetization Time
G722 G.722 RFC 3551 64 Kbps 16 Ksps 20ms
PCMA G.711 a-law RFC 3551 64 Kbps 8 Ksps 20ms
PCMU G.711 u-law RFC 3551 64 Kbps 8 Ksps 20ms
G729 G.729 RFC 3551 8 Kbps 8 Ksps 20ms
G726-16 G.726 RFC 3551 16 Kbps 8 Ksps 20ms