Yealink SIP-T21 E2

Administrator’s Guide for SIP-T2 Series/T19(P) E2/T4 Series/T5 Series/CP860/CP920 IP Phones
702
Parameters
Permitted Values
Default
For SIP-T48G/S IP phones:
The default value of the line key 1-16 is 15, and the default value of the line key 17-29 is 0.
For SIP-T54S/T46G/T46S/T29G IP phones:
The default value of the line key 1-16 is 15, and the default value of the line key 17-27 is 0.
For SIP-T52S IP phones:
The default value of the line key 1-12 is 15, and the default value of the line key 13-21 is 0.
For SIP-T42G/S IP phones:
The default value of the line key 1-12 is 15, and the default value of the line key 13-15 is 0.
For SIP-T41P/S IP phones:
The default value of the line key 1-6 is 15, and the default value of the line key 7-15 is 0.
For SIP-T27P/G IP phones:
The default value of the line key 1-6 is 15, and the default value of the line key 7-21 is 0.
For SIP-T40P/T40G/T23P/T23G/T21(P) E2 IP phones:
The default value is 15.
For ext keys:
For SIP-T54S/T52S IP phones:
When Y=1-60, the default value is 0 (NA).
For SIP-T48G/T48S/T46G/T46S IP phones:
When Y= 1 to 40, the default value is 0 (NA).
For SIP-T29G/T27P/T27G IP phones:
When Y= 1, 21, the default value is 37 (Switch).
When Y = 2 to 20, 22 to 40, the default value is 0 (NA).
Note: It is not applicable to SIP-T19(P) E2/CP860/CP920 IP phones.
Web User Interface:
Dsskey->Line Key->Type
Phone User Interface:
Menu->Features->DSS Keys->Line Key X->Type
linekey.X.label/
expansion_module.X.key.Y.label
String within 99
characters
Blank
Description:
(Optional.) Configures the label displayed on the LCD screen for each DSS key.
For line keys:
X ranges from 1 to 29 (for SIP-T48G/S)
X ranges from 1 to 27 (for SIP-T54S/T46G/T46S/T29G)