Yealink SIP-T2xP Administrator's Manual page 407

Example
Parameter-
account.X.codec.Y.enable
Description
Format
Default Value
Range
0-Disabled
1-Enabled
features.headset_training = 1
Configuration File
<MAC>.cfg
Enables or disables the IP phone to use the
specific codec for account X.
X ranges from 1 to 6.
Y ranges from 1 to 11.
Boolean
For SIP-T20P/T22P/T26P/T28P IP phones:
When Y=1, the default value is 1;
When Y=2, the default value is 1;
When Y=3, the default value is 0;
When Y=4, the default value is 0;
When Y=5, the default value is 1;
When Y=6, the default value is 1;
When Y=7, the default value is 0;
When Y=8, the default value is 0;
When Y=9, the default value is 0;
When Y=10, the default value is 0;
When Y=11, the default value is 0.
For SIP-T19P/T21P IP phones:
When Y=1, the default value is 1;
When Y=2, the default value is 1;
When Y=3, the default value is 0;
When Y=4, the default value is 0;
When Y=5, the default value is 1;
When Y=6, the default value is 1;
When Y=7, the default value is 0;
When Y=8, the default value is 0.
Valid values are:
0-Disabled
Appendix
391