Configuring Basic Features
65
Contrast determines the readability of the texts displayed on the LCD screen. Adjusting
the contrast to a comfortable level can optimize the screen viewing experience. When
configured properly, contrast allows users to read the LCD’s display with minimal
eyestrain. You can configure the LCD’s contrast of SIP-T27P, SIP-T23P/G and SIP-T21(P) E2
IP phones, EXP39 connected to SIP-T29G/T27P IP phones and EXP40 connected to
SIP-T48G/T46G IP phones. Make sure the expansion module has been connected to the
IP phone before adjustment.
Procedure
Contrast can be configured using the configuration files or locally.
Configure the LCD’s contrast of
SIP-T27P, SIP-T23P/G and SIP-T21(P)
E2 IP phones, EXP39 connected to
SIP-T29G/T27P IP phones and
EXP40 connected to
SIP-T48G/T46G IP phones.
Parameter:
phone_setting.contrast
Configure the LCD’s contrast of
SIP-T27P, SIP-T23P/G and SIP-T21(P)
E2 IP phones.
Navigate to:
http://<phoneIPAddress>/servlet
?p=settings-preference&q=load
Configure the LCD’s contrast of
SIP-T27P, SIP-T23P/G and SIP-T21(P)
E2 IP phones, EXP39 connected to
SIP-T29G/T27P IP phones and
EXP40 connected to
SIP-T48G/T46G IP phones.
Details of the Configuration Parameter:
Description:
Configures the contrast of the LCD screen.