When Y=6, the default value is G722;
When Y=7, the default value is iLBC;
When Y=8, the default value is G726-16;
When Y=9, the default value is G726-24;
When Y=10, the default value is G726-32;
When Y=11, the default value is G726-40;
For SIP-T40P/T40G/T23P/T23G/T21(P) E2/T19(P) E2:
When Y=1, the default value is PCMU;
When Y=2, the default value is PCMA;
When Y=3, the default value is G729;
When Y=4, the default value is G722;
When Y=5, the default value is iLBC;
When Y=6, the default value is G726-16;
When Y=7, the default value is G726-24;
When Y=8, the default value is G726-32;
When Y=9, the default value is G726-40;
When Y=10, the default value is opus;
For SIP-T27P/T27G:
When Y=1, the default value is PCMU;
When Y=2, the default value is PCMA;
When Y=3, the default value is G729;
When Y=4, the default value is G722;
When Y=5, the default value is iLBC;
When Y=6, the default value is G726-16;
When Y=7, the default value is G726-24;
When Y=8, the default value is G726-32;
When Y=9, the default value is G726-40;
Example:
account.1.codec.1.payload_type = PCMU
Note: It is only applicable to the IP phones running firmware version 81 or prior.
Web User Interface:
Account->Codec->Audio Codec
Phone User Interface:
None