Yealink SIP-T21 E2

Administrator’s Guide for SIP-T2 Series/T19(P) E2/T4 Series/T5 Series/CP860/CP920 IP Phones
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DSS key can be assigned with various key features. The parameters of the DSS key are detailed
in the following:
Parameter-
linekey.X.type
Configuration File
<y0000000000xx>.cfg
Parameter-
programablekey.X.type
Parameter-
expansion_module.X.key.Y.type
Description
Configures key feature for the DSS key.
For line keys (not applicable to SIP-T19(P)
E2/CP860/CP920 IP phones):
X ranges from 1 to 29 (for SIP-T48G/S)
X ranges from 1 to 27 (for SIP-
T54S/T46G/T46S/T29G)
X ranges from 1 to 15 (for SIP-
T42G/T42S/T41P/T41S)
X ranges from 1 to 21 (for SIP-T52S/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)
For programable keys:
X=1-10, 12-14 (for SIP-T54S/T48G/T48S/T46G/T46S)
X=1-10, 13 (for SIP-
T52S/T42G/T42S/T41P/T41S/T40P/T40G)
X=1-14 (for SIP-T29G/T27P/T27G)
X=1-10, 14 (for SIP-T23P/T23G/T21(P) E2)
X=1-9, 13, 14 (for SIP-T19(P) E2)
X=1-6, 9, 13 (for CP860/CP920)
For ext keys (only applicable to SIP-
T54S/T52S/T48G/T48S/T46G/T46S/T29G/T27P/T27G
IP phones):
For SIP-T54S/T52S:
X ranges from 1 to 3, Y ranges from 1 to 60.
For SIP-T48G/T48S/T46G/T46S:
X ranges from 1 to 6, Y ranges from 1 to 40.
For SIP-T29G/T27P/T27G: