Yealink SIP-T54S Administrator's Manual page 886

Administrator's Guide for SIP-T2 Series/T19(P) E2/T4 Series/T5 Series/CP860/CP920 IP Phones
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.
Web User Interface:
Account->Codec->Audio Codec
Phone User Interface:
None
account.X.codec.<payload_type>.priority
(where <payload_type> should be replaced by
the name of audio codec)
Description:
Configures the priority of the enabled audio codec for account X.
X ranges from 1 to 16 (for SIP-T54S/T48G/T48S/T46G/T46S/T29G)
X ranges from 1 to 12 (for SIP-T52S/T42G/T42S)
X ranges from 1 to 6 (for SIP-T41P/T41S/T27P/T27G)
X ranges from 1 to 3 (for SIP-T40P/T40G/T23P/T23G)
X ranges from 1 to 2 (for SIP-T21(P) E2)
X is equal to 1 (for SIP-T19(P) E2/CP860/CP920)
Valid Audio Codec:
For SIP-T48G/T46G/T42G/T41P/T29G/CP860:
G722, PCMA, PCMU, G729, G726-16, G726-24, G726-32, G726-40, iLBC, G723_53,
G723_63
For SIP-T54S/T52S/T48S/T46S/T42S/T41S/T27G:
G722, PCMA, PCMU, G729, G726-16, G726-24, G726-32, G726-40, iLBC, G723_53,
G723_63, opus
For SIP-T40P/T40G/T23P/T23G/T21(P) E2/T19(P) E2:
G722, PCMA, PCMU, G729, G726-16, G726-24, G726-32, G726-40, iLBC, opus
For SIP-T27P:
G722, PCMA, PCMU, G729, G726-16, G726-24, G726-32, G726-40, iLBC
For CP920:
G722_1c_48, G722_1c_32, G722_1c_24, G722_1_24, G722, PCMA, PCMU, G729, G726-16,
G726-24, G726-32, G726-40, iLBC, G723_53, G723_63, opus
Default:
For SIP-T54S/T52S/T48S/ T48G /T46S/T46G//T42S(G)/T41S/T42G /T40P/T40G
/T29G /T27G/T23P/T23G/T21(P) E2/T19(P) E2 CP860:
When audio codec is G722, the default value is 1;
860
Parameters
Permitted
Default
Values
Integer from Refer to the
0 to 11 following content