Yealink SIP-T52S User Manual

Overview
11
LED Status
Description
The call is muted.
Note
Line Key LED
Line key LED
LED Status
Description
Solid green
The line is seized.
The line is in busy or is in a call.
Fast-flashing green
The line receives an incoming call.
Slow-flashing green
The call is placed on hold.
Off
The line is inactive.
Line key LED (configured as a Forward key with a value (destination number))
LED Status
Description
Solid green
The always forward feature is activated.
Off
The always forward feature is deactivated.
Note
Line key LED (configured as a BLF key or BLF List key)
LED Status
Description
Solid green
The monitored user is idle.
Fast-flashing red (200ms)
The monitored user receives an incoming call.
Solid red
The monitored user is busy.
The monitored user’s conversation is placed on hold
(This LED status requires server support).
Slow-flashing red (1s)
The call is parked on the monitored user.
If the value (the destination number) is not configured for a Forward key, the key LED solids
green when the always/busy/no answer forward feature is activated. It is off when the
always/busy/no answer forward feature is deactivated.
The above is the default LED status, since the status of the power LED indicators may be
configured by your system administrator. For more information, please contact your system
administrator.

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