Yealink SIP-T52S User Manual

Maintaining Your Phone
211
Resetting to Factory Settings
Generally, some common issues may occur while using the IP phone. Your system administrator
may ask you to reset your phone to factory configurations after you have tried all
troubleshooting suggestions but still do not solve the problem. This operation will delete all
your personal configuration settings, and reset all settings to the manufacturer default setting.
Check with your system administrator if the personalized settings are kept before resetting your
phone to factory settings.
Procedure:
1. Navigate to Menu->Advanced (default password: admin) ->Reset Config.
2. Highlight the Reset to factory settings, and then press Reset.
A message is displayed on the LCD screen:
3. Press OK.
The phone begins resetting.
You can also long press the OK key when the phone is idle.
After reset, the LCD screen prompts “Welcome Initializing…Please wait”.
The phone will be reset sucessfully after startup.
Resetting to factory settings is operable via web user interface at the path
Settings->Upgrade.
Note
Reset of your phone may take a few minutes. Do not power off until the phone has started up
successfully.

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