Yealink SIP-T52S Administrator's Guide

Configuring Basic Features
185
expansion module.
Configure the wallpaper with DSSkey
unfold.
Details of the Configuration Parameters:
Parameters
Permitted
Values
Default
phone_setting.backgrounds
Refer to the
following
content
Default.jpg
Description:
Configures the wallpaper displayed on the IP phone idle screen.
For SIP-T48G/S IP phones, it configures the wallpaper when the DSS key list is folded.
Permitted Values:
Default.jpg, 01.jpg, 02.jpg, 03.jpg, 04.jpg, 05.jpg, 06.jpg, 07.jpg, 08.jpg, 09.jpg or 10.jpg or
custom wallpaper name (e.g., wallpaper.jpg)
Example:
phone_setting.backgrounds = Default.jpg
Note: It is only applicable to SIP-T54S/T52S/T48G/T48S/T46G/T46S/T29G IP phones.
Web User Interface:
Settings->Preference->Wallpaper
Phone User Interface:
Menu->Basic->Display->Wallpaper
expansion_module.backgrounds
Refer to the
following
content
Default-
exp50.jpg
Description:
Configures the wallpaper displayed on the expansion module.
Permitted Values:
Default-exp50.jpg, 01-exp50.jpg, 02-exp50.jpg, 03-exp50.jpg, 04-exp50.jpg, 05-exp50.jpg,
06-exp50.jpg, 07-exp50.jpg, 08-exp50.jpg, 09-exp50.jpg or 10-exp50.jpg or custom
wallpaper name (e.g., wallpaper.jpg)
Example:
expansion_module.backgrounds = Default-exp50.jpg
Note: It is only applicable to EXP50 expansion modules connected to the SIP-T54S/T52S IP
phones.
Web User Interface:

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