Yealink SIP-T21 E2

Administrator’s Guide for SIP-T2 Series/T19(P) E2/T4 Series/T5 Series/CP860/CP920 IP Phones
858
Web User Interface
Configure the codecs to use on a per-line
basis.
Configure the priority and rtpmap for the
enabled codec.
Configure the opus sample rate.
Navigate to:
http://<phoneIPAddress>/servlet?p=acco
unt-codec&q=load&acc=0
Details of Configuration Parameters:
Parameters
Permitted
Values
Default
account.X.codec.<payload_type>.enable
(where <payload_type> should be replaced by
the name of audio codec)
0 or 1
Refer to the
following content
Description:
Enables or disables the specified audio codec for account X.
0-Disabled
1-Enabled
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: