Yealink SIP-T52S Administrator's Guide

Configuring Audio Features
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2. Select the desired value from the pull-down list of Headset Prior.
3. Click Confirm to accept the change.
Dual Headset
Dual headset allows users to use two headsets on one IP phone. To use this feature, users need
to physically connect two headsets to the headset and handset jacks respectively. Once the IP
phone connects to a call, the user with the headset connected to the headset jack has full-
duplex capabilities, while the user with the headset connected to the handset jack is only able
to listen.
Note
Procedure
Dual headset can be configured using the following methods.
Central Provisioning
(Configuration File)
<y0000000000xx>.cfg
Configure dual headset.
Parameter:
features.headset_training
Web User Interface
Configure dual headset.
Navigate to:
http://<phoneIPAddress>/servl
et?p=features-general&q=load
Dual headset is not applicable to the Bluetooth headset and USB headset.

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