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Yealink SIP-T4U Series User Manual

Yealink SIP-T4U Series
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Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
226
Format Description
For example, 2016, 2017, 2018…
M/MM
It represents a two-digit month.
For example, 01, 02,…, 12
MMM
It represents the abbreviation of the month.
For example, Jan, Feb,…, Dec
M is used more than three times (for example, MMMM)
It represents the long format of the month.
For example, January, February,…, December
D is used once or more than once (for example, DD)
It represents a two-digit day.
For example, 01, 02,…, 31
W/WW
It represents the abbreviation of the day of week.
For example, Mon, Tue,…, Sun
W is used more than twice (for example, WWW,
WWWW)
It represents the long format of the day of week.
For example, Monday, Tuesday,…, Sunday
Idle Clock Display
Idle clock is displayed on the center of the idle screen by default. You can hide the idle clock, and then the time and
date are displayed in the right of the status bar.
It is only applicable to T54W phones.
Topic
Idle Clock Display Configuration
Idle Clock Display Configuration
The following table lists the parameter you can use to configure the idle clock display.
Parameter
phone_setting.idle_clock_display.enable <y0000000000xx>.cfg
Description
It enables or disables the phone to display the idle clock.
Permitted
Values
0-Disabled
1-Enabled
Default
1
Supported
Devices
T54W
Phone UI
Menu > Basic > Display > Idle Clock > Idle Clock Display
Logo Customization
Since a logo is a visual entity signifying an organization or company, you can upload a custom logo shown on the
LCD screen. The logo screen and the idle screen display alternately.
The following shows a system logo (Yealink logo) displayed on T27G:

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Yealink SIP-T4U Series Specifications

General IconGeneral
BrandYealink
ModelSIP-T4U Series
CategoryIP Phone
LanguageEnglish

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