Yealink SIP-T52S User Manual

Available Features with Optional Accessories
207
Procedure:
1. Long press the desired ext key on EXP50.
The IP phone LCD screen will enter the user setting interface of this key.
2. Customize the specific feature for this key on the IP phone.
3. Press Save.
Ext keys are configurable via web user interface at the path Dsskey->Ext Key.
Changing the EXP Wallpaper/Screensaver
Before changing the EXP wallpaper, ensure that the color-screen expansion module EXP50 is
connected to the IP phone successfully.
Format
Resolution
Single File Size
Screen Size
*.jpg, *.png,
*.bmp, *.jpeg
<=4.2
megapixels
<=5MB
4.3 inches (Resolution: 272x480)
Note
Wallpaper for color-screen expansion module EXP50 is configurable via web user interface at
the path Settings->Preference.
Changing the EXP Wallpaper from Phone
Procedure:
1. Press Menu->Basic->Display->EXP Wallpaper.
2. Select the desired wallpaper image.
3. Press Save.
If the size of the custom wallpaper doesn’t meet the expansion module screen size, the wallpaper
will be stretched or zoomed out according to the screen size.
2MB of space should be reserved for the phone.

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