Yealink SIP-T2 Series Administrator's Manual page 544

Administrator's Guide for SIP-T2 Series/T19(P) E2/T4 Series/T5 Series/CP860 IP Phones
Parameters
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:
X ranges from 1 to 6, Y ranges from 1 to 20, 22 to 40 (Ext key 21 cannot be configured).
Permitted Values:
1 to 16 (for SIP-T54S/T48G/T48S/T46G/T46S/T29G)
1 to 12 (for SIP-T52S/T42G/T42S)
1 to 6 (for SIP-T41P/T41S/T27P/T27G)
1 to 3 (for SIP-T40P/T40G/T23P/T23G)
1 to 2 (for SIP-T21(P) E2)
1-Line 1
2-Line 2
...
16-Line 16
Example:
linekey.2.line = 1
Note: It is not applicable to SIP-T19(P) E2/CP860 IP phones.
Web User Interface:
Dsskey->Line key->Line
Phone User Interface:
Menu->Features->DSS Keys->Line Key X->Account ID
linekey.X.value/
expansion_module.X.key.Y.value
Description:
Configures the park retrieve code.
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)
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 ext keys:
For SIP-T54S/T52S:
518
Permitted Values
String within 99
characters
Default
Blank