Yealink SIP-T52S Administrator's Guide

Configuring Basic Features
203
Parameters
Permitted Values
Default
Configures the starting time and ending time of the day’s office hour.
Starting time and ending time are separated by a comma.
Example:
features.power_saving.office_hour.monday = 7,19
Note: It is not applicable to SIP-T19(P) E2 IP phones.
Web User Interface:
Settings->Power Saving->Monday/Tuesday/Wednesday/Thursday/Friday/Saturday/Sunday
Phone User Interface:
None
To configure the power saving feature via web user interface:
1. Click on Settings->Power Saving.
2. Select Enabled from the pull-down list of Power Saving.
3. Enter the starting time and ending time respectively in the desired day field.
4. Enter the desired value (1-960) in the Office Hours Idle TimeOut field.
5. Enter the desired value (1-10) in the Off Hours Idle TimeOut field.
6. Enter the desired value (1-30) in the User Input Extension Idle TimeOut field.
7. Click Confirm to accept the change.
Backlight
Backlight determines the brightness of the LCD screen display, allowing users to read easily in

Yealink SIP-T52S Specifications

General

Touchscreen	-
Display diagonal	2.8 \
Backlight display	Yes
Display resolution	320 x 240 pixels
Lines quantity	16 lines
Phonebook capacity	1000 entries
Number of VoIP accounts	12
AC adapter input voltage	100 - 240 V
Bluetooth version	2.1+EDR
Security algorithms	802.1x RADIUS, HTTPS, MD5
Ethernet LAN interface type	Gigabit Ethernet
USB 2.0 ports quantity	1
Ethernet LAN (RJ-45) ports	2
Mounting	Desk/Wall
Handset type	Wired handset
Product type	IP Phone
Product color	Black
Voice codecs	G.722, G.723, G.723.1, G.726, OPUS, iLBC
Volume control	Digital
Operating temperature (T-T)	-10 - 40 °C
Operating relative humidity (H-H)	10 - 95 %
Cables included	LAN (RJ-45)
Number of handles included	1 pc(s)
Front camera	No
Operating system installed	Linux

Weight and Dimensions

Depth	212 mm
Width	211.6 mm
Height	166.8 mm