Yealink SIP-T3 Administrator's Manual page 201

Administrator's Guide for SIP-T2 /T3 /T4 /T5 /CP920 IP Phones
g722_1c_24kpbs-G.722.1c(24kb/s) (only for CP920/CP925/CP935W)
g722_1_24kpbs-G.722.1(24kb/s) (only for CP920/CP925/CP935W)
g722-G722
pcmu-PCMU(G.711μ)
pcma-PCMA(G.711A)
g729-G729(G729A)
g726_16-G726(16 kbps)
g726_24-G726(24 kbps)
g726_32-G726(32 kbps)
g726_40-G726(40 kbps)
g723_53-G723(53 kbps)
g723_63-G723(63 kbps)
opus-Opus
ilbc_15_2kpbs- iLBC(15.2kbps)
ilbc_13_33kpbs-iLBC(13.33kbps)
g729ab-G729AB
Example:
account.1.codec.g722.priority = 1
Note: The priority of the codec in the disable codec list is not specified, and numerical value 1 is
defined as the highest priority in the enable codec list. The name of the 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
Integer from 0 to 13 (18 for CP920 phones; 17 for CP925/CP935W phones)
Values
When the audio codec is G722.1c(48kb/s), the default value is 1;
When the audio codec is G722.1c(32kb/s), the default value is 2;
When the audio codec is G722.1c(24kb/s), the default value is 3;
When the audio codec is G722.1(24kb/s), the default value is 4;
When the audio codec is G722, the default value is 1 (5 for CP920/CP925/CP935W phones);
When the audio codec is PCMU(G.711μ), the default value is 2 (6 for CP920/CP925/CP935W
phones);
Default
When the audio codec is PCMA(G.711A), the default value is 3 (7 for CP920/CP925/CP935W
phones);
When the audio codec is G729(G729A), the default value is 4 (8 for CP920/CP925/CP935W phones);
When the audio codec is G726(16 kbps), the default value is 0;
When the audio codec is G726(24 kbps), the default value is 0;
When the audio codec is G726(32 kbps), the default value is 0;
When the audio codec is G726(40 kbps), the default value is 0;
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