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Yealink SIP-T52S User Manual

Yealink SIP-T52S
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Basic Call Features
107
Placing a Call Back to the Last Incoming Call
You can configure a Recall key to place a call back to the last incoming call quickly.
Procedure:
1. Navigate to Menu->Features->DSS Keys.
2. Select a desired line key.
3. Select Key Event from the Type field.
4. Select ReCall from the Key Type field.
5. (Optional.) Enter the string that will display on the LCD screen in the Label field.
6. (Optional.) For the SIP-T52S IP phone, enter the string that will appear on the LCD screen in
the Short Label field.
7. Press Save.
Recall key is configurable via web user interface at the path Dsskey->Line key.
Dialing the Hotline Number
You can configure the hot line feature with a hotline number and hotline delay. Then the IP
phone will dial out the hotline number automatically after the delay time when you lift the
handset, press the Speakerphone key or the line key.
Procedure:
1. Navigate to Menu->Features->Others->Hot Line.
2. Enter the desired number in the Hotline Number 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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