Yealink SIP-T52S Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T19(P) E2/T4 Series/T5 Series/CP860/CP920 IP Phones
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LED Status
Description
Off
The monitored user is idle.
The monitored user does not exist.
Line Key/Expansion Module Key LED (configured as a BLF key or a BLF List key and BLF LED
Mode is set to 4. This mode is specifically designed for the Genband server.)
LED Status
Description
Solid green
The monitored user is talking.
Slow-flashing green (1s)
The monitored user does not exist.
Off
The monitored user is idle.
Procedure
BLF LED mode can be configured using the following methods.
Central
Provisioning
(Configuration File)
<y0000000000xx>.cfg
Configure BLF LED mode.
Parameter:
features.blf_led_mode
Web User Interface
Configure BLF LED mode.
Navigate to:
http://<phoneIPAddress>/servlet?p=f
eatures-general&q=load
Details of Configuration Parameters:
Parameters
Permitted Values
Default
features.blf_led_mode
0, 1, 2, 3 or 4
0
Description:
Configures BLF LED mode and provides five kinds of definition for the BLF/BLF List key LED
status.
Note: It is not applicable to SIP-T19(P) E2/CP860/CP920 IP phones. For the Genband
server, you can set the value of this parameter to 4.
Web User Interface:
Features->General Information->BLF LED Mode
Phone User Interface:
None

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