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Yealink SIP-T52S Administrator's Guide

Yealink SIP-T52S
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Configuring Security Features
937
5. Enter the desired time in the Phone Lock Time Out(0~3600s) field.
6. Click Confirm to accept the change.
To configure a phone lock key via web user interface:
1. Click on Dsskey->Line Key (or Programable Key).
2. In the desired DSS key field, select Phone Lock from the pull-down list of Type.
3. (Optional.) Enter the string that will appear on the LCD screen in the Label field.
4. Click Confirm to accept the change.
To configure the type of phone lock via phone user interface:
1. Press Menu->Basic->Phone Lock.
2. Enter the unlock PIN (default PIN: 123) in the Unlock PIN field.
3. Press or , or the Switch soft key to select the desired value from the Lock
Enable field.
4. Press or , or the Switch soft key to select the desired value from the Lock Type
field.
5. Enter the desired interval of automatic phone lock in the Auto Lock field.
6. Press the Save soft key to accept the change.
To change the unlock PIN via phone user interface:
1. Press Menu->Basic->Change PIN.
2. Enter the current unlock PIN in the Old PIN field.
3. Enter the new unlock PIN in the New PIN field.
4. Enter the new unlock PIN again in the Confirm PIN field.

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Yealink SIP-T52S Specifications

General IconGeneral
Touchscreen-
Display diagonal2.8 \
Backlight displayYes
Display resolution320 x 240 pixels
Lines quantity16 lines
Phonebook capacity1000 entries
Number of VoIP accounts12
AC adapter input voltage100 - 240 V
Bluetooth version2.1+EDR
Security algorithms802.1x RADIUS, HTTPS, MD5
Ethernet LAN interface typeGigabit Ethernet
USB 2.0 ports quantity1
Ethernet LAN (RJ-45) ports2
MountingDesk/Wall
Handset typeWired handset
Product typeIP Phone
Product colorBlack
Voice codecsG.722, G.723, G.723.1, G.726, OPUS, iLBC
Volume controlDigital
Operating temperature (T-T)-10 - 40 °C
Operating relative humidity (H-H)10 - 95 %
Cables includedLAN (RJ-45)
Number of handles included1 pc(s)
Front cameraNo
Operating system installedLinux
Weight and Dimensions IconWeight and Dimensions
Depth212 mm
Width211.6 mm
Height166.8 mm

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