Yealink SIP-T54S Administrator's Manual page 246

Administrator's Guide for SIP-T2 Series/T19(P) E2/T4 Series/T5 Series/CP860/CP920 IP Phones
Procedure
Label length can be configured using the following methods.
Central Provisioning
(Configuration File)
Web User Interface
Details of the Configuration Parameter:
features.config_dsskey_length
Description:
Configures the label length of the label displayed on the idle LCD screen for the line key.
0-Default
1-Extended
2-Mid-range (only applicable to SIP-T54S/T46G/T46S/T29G IP phones)
Note: For SIP-T54S/T46G/T46S/T29G IP phones, if it is set to 2 (Mid-range), the idle screen
can display 9 digits at most. For SIP-T48G/T48S IP phones, the idle screen can display 9
digits at most by default. It is only applicable to SIP-T54S/T48G/T48S/T46G/T46S/T29G IP
phones.
Web User Interface:
Dsskey->Line Key->Label Length
Phone User Interface:
None
To configure the label length via web user interface:
Click on Dsskey->Line Key.
1.
220
<y0000000000xx>.cfg
Parameter
Configure label length.
Parameter:
features.config_dsskey_length
Configure label length.
Navigate to:
http://<phoneIPAddress>/servlet?
p=dsskey&model=1&q=load&line
page=1
Permitted Values
0, 1 or 2
Default
0