Yealink SIP-T52S Administrator's Guide

Configuring Advanced Features
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To configure BLF LED mode via web user interface:
1. Click on Features->General Information.
2. Select the desired value from the pull-down list of BLF LED Mode.
3. Click Confirm to accept the change.
Configuring BLF LED Status and BLF Key Behavior
You can customize the BLF LED status and BLF key behavior using the EDK macros if required.
For more information on EDK macros, refer to Understanding Macro Action Strings on page
791.
The following behaviors are supported when pressing the BLF/BLF List keys:
 newcall - dial out the phone number
 btransfer - transfer the active call to the monitored user without consulting
 ctransfer - transfer the active call to the monitored user with prior consulting
 pickup - pick up the call directly
 bargein - barge in and set up a conference call
 custom EDK macros (e.g., 1234$Tinvite$) - execute a series of macro action strings

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