Yealink SIP-T52S Administrator's Guide

Configuring Basic Features
171
 Feature Key Synchronization
 Transfer Mode via Dsskey
 Allow Trans Exist Call
 Directed Call Pickup
 Group Call Pickup
 Dialog Info Call Pickup
 Recent Call In Dialing
 ReCall
 Call Number Filter
 Call Park
 Calling Line Identification Presentation (CLIP)
 Connected Line Identification Presentation (COLP)
 Mute
 Intercom
 Call Timeout
 Ringing Timeout
 Send user=phone
 SIP Send MAC
 SIP Send Line
 Reserve # in User Name
 Password Dial
 Unregister When Reboot
 100 Reliable Retransmission
 Reboot in Talking
 Answer By Hand
 USB Recording
 CSTA Control
 Quick Login
 Cloud
Power Indicator LED
Power indicator LED indicates power status and phone status. It is not applicable to
CP860/CP920 IP phones.
There are seven configuration options for power indicator LED:

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