Yealink T42S

Audio Features
381
Phone Model
Supported Audio Codecs
Default Audio Codecs
1(P) E2/T19(P) E2
G726-16, G726-24, G726-32,
G726-40, opus, iLBC_15_2kpbs,
iLBC_13_33kpbs
G729
Audio Codecs Configuration
Yealink IP phones running firmware version 81 or later support a new configuration behavior for the
audio codecs. It is more effective for you to provision different IP phone modules.
The configuration parameters are different for the new configuration behavior and the older one. For
more information on old configuration behavior, refer to Yealink_SIP-T2_Series_T19(P)
E2_T4_Series_T5_Series_CP860_IP_Phones_Administrator_Guide_V81 .
The following table lists the parameters you can use to configure the audio codecs.
Parameter
account.X.codec.<payload_type>.enable
[1]
<MAC>.cfg
Description
It enables or disables the specified audio codec.
The name of audio codec:
g722-G722 pcmu-PCMU pcma-PCMA g729-G729
g726_16-G726-16 g726_24-G726-24 g726_32-G726-32 g726_40-G726-40,
g723_53-G723_53 g723_63-G723_63 opus-opus
ilbc_15_2kpbs-iLBC_15_2kbps ilbc_13_33kpbs-iLBC_13_33kbps
Example:
account.1.codec.g722.enable = 1
Note: The name of audio codec in this parameter should be the correct one as listed
in the above example, otherwise the corresponding configuration will not take effect.
Permitted
Values
0-Disabled
1-Enabled
Default
Default:
When audio codec is G722, the default value is 1;
When audio codec is PCMU, the default value is 1;
When audio codec is PCMA, the default value is 1;
When audio codec is G729, the default value is 1;
When audio codec is G726-16, the default value is 0;
When audio codec is G726-24, the default value is 0;
When audio codec is G726-32, the default value is 0;
When audio codec is G726-40, the default value is 0;
When audio codec is G723_53, the default value is 0;
When audio codec is G723_63, the default value is 0;
When audio codec is opus, the default value is 0;
When audio codec is iLBC_15_2kbps, the default value is 0;
When audio codec is iLBC_13_33kpbs, the default value is 0;