Yealink SIP-T52S Administrator's Guide

Configuring Advanced Features
741
Variable Value
Phone Action
L1-LX
Press the line keys (for SIP-T48G/S, X=29; for
SIP-T54S/T46G/T46S/T29G, X=27; for SIP-
T42G/T42S/T41P/T41S, X=15; for SIP-
T52S/T27P/T27G, X=21; for SIP-
T40P/T40G/T23P/T23G, X=3; for SIP-T21(P)
E2, X=2).
F1-F4
Press the soft keys.
MSG
Press the MESSAGE key (not applicable to
CP860/CP920 IP phones).
HEADSET
Press the HEADSET key (not applicable to
CP860/CP920 IP phones).
RD
Redial the last dialed number (not applicable
to CP920 IP phones).
UP/DOWN/LEFT/RIGHT
Press the navigation keys.
Reboot
Reboot the phone.
AutoP
Perform auto provisioning.
DNDOn
Activate the DND feature.
Note: For Yealink IP phones (except CP860), it
works only if the value of the parameter
“features.dnd.allow” is set to 1 (Enabled).
DNDOff
Deactivate the DND feature.
Note: For Yealink IP phones (except CP860), it
works only if the value of the parameter
“features.dnd.allow” is set to 1 (Enabled).
number=xxx&outgoing_uri=y
Place a call to xxx from SIP URI y.
Example:
http://10.3.20.10/servlet?key=number=1234&
outgoing_uri=1006@10.2.1.48 (1234 means
the number you dial out; 1006@10.2.1.48
means the SIP URL you dial from.)

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