Yealink SIP-T54S Administrator's Manual page 836

Administrator's Guide for SIP-T2 Series/T19(P) E2/T4 Series/T5 Series/CP860/CP920 IP Phones
Web User Interface
Phone User Interface
Custom Key
For more information on how to configure the DSS Key, refer to
Key on page 1014.
Details of Configuration Parameters:
linekey.X.type/ programablekey.X.type/
expansion_module.X.key.Y.type
Description:
Configures a DSS key as a Custom Key on the IP phone.
The digit 73 stands for the key type Custom 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)
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:
810
Parameters
expansion_module.X.key.Y.value
linekey.X.label/ programablekey.X.label/
expansion_module.X.key.Y.label
linekey.X.shortlabel
Assign a custom key.
Navigate to:
http://<phoneIPAddress>/servlet?p=dss
key&q=load&model=0
Assign a custom key.
Appendix D: Configuring DSS
Permitted Values
73
following content
Default
Refer to the