Yealink SIP-T52S Administrator's Guide

Configuring Basic Features
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4. Enter the desired number of hidden digits in the PswLength field.
5. Click Confirm to accept the change.
Unregister When Reboot
Unregister when reboot feature allows IP phones to unregister first before re-registering the
account when finishing a reboot.
Procedure
Unregister when reboot can be configured using the following methods.
Central Provisioning
(Configuration File)
<MAC>.cfg
Configure unregister when reboot.
Parameter:
account.X.unregister_on_reboot
Web User Interface
Configure unregister when reboot.
Navigate to:
http://<phoneIPAddress>/servlet?p
=account-adv&q=load&acc=0
Details of the Configuration Parameter:
Parameter
Permitted Values
Default
account.X.unregister_on_reboot
0 or 1
0
Description:
Enables or disables the IP phone to unregister first before re-registering account X when

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