Yealink SIP-T2 SERIES Administrator's Manual page 823

Configuring Audio Features
Permitted
Parameters Default
Values
X ranges from 1 to 12 (for SIP-T42G)
X ranges from 1 to 6 (for SIP-T41P/T27P)
X ranges from 1 to 3 (for SIP-T40P/T23P/T23G)
X ranges from 1 to 2 (for SIP-T21(P) E2)
X is equal to 1 (for SIP-T19(P) E2/CP860)
Y ranges from 1 to 15 (for SIP VP-T49G)
Y ranges from 1 to 11 (for SIP-T48G/T46G/T42G/T41P/T29G/CP860)
Y ranges from 1 to 9 (for SIP-T40P/T27P/T23P/T23G/T21(P) E2/T19(P) E2)
Permitted Values:
For SIP-T48G/T46G/T42G/T41P/T40P/T29G/T27P/T23P/T23G/T21(P) E2/T19(P) E2/CP860:
G722, PCMU, PCMA, G729, G726-16, G726-24, G726-32, G726-40, iLBC, G723_53,
G723_63
For SIP VP-T49G:
G722.1c(48kb/s), G722.1c(32kb/s), G722.1c(24kb/s), G722.1(24kb/s), G722, PCMU,
PCMA, G729, G726-16, G726-24, G726-32, G726-40, iLBC, G723, Opus
For SIP VP-T49G:
When Y=1, the default value is PCMU;
When Y=2, the default value is PCMA;
When Y=3, the default value is G723;
When Y=4, the default value is G729;
When Y=5, the default value is G722;
When Y=6, the default value is iLBC;
When Y=7, the default value is G726-16;
When Y=8, the default value is G726-24;
When Y=9, the default value is G726-32;
When Y=10, the default value is G726-40;
When Y=11, the default value is Opus;
When Y=12, the default value is G7221 (it represents the codec G722.1c(48kb/s));
When Y=13, the default value is G7221 (it represents the codec G722.1c(32kb/s));
When Y=14, the default value is G7221 (it represents the codec G722.1c(24kb/s));
When Y=15, the default value is G7221 (it represents the codec G722.1(24kb/s));
For SIP-T48G/T46G/T42G/T41P/T29G/CP860:
When Y=1, the default value is PCMU;
When Y=2, the default value is PCMA;
When Y=3, the default value is G723_53;
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