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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Parameters
Permitted Values
Default
the one (encrypted or unencrypted) stored on the server if you have configured to back up
the MAC-local CFG file to the server by the parameter “static.auto_provision.custom.sync”.
The plaintext AES key is configured by the parameter
“static.auto_provision.aes_key_16.mac”.
Web User Interface:
None
Phone User Interface:
None
To configure AES keys via web user interface:
1. Click on Settings->Auto Provision.
2. Enter the values in the Common AES Key and MAC-Oriented AES Key fields.
AES keys must be 16 characters and the supported characters contain: 0-9, A-Z, a-z and
the following special characters are also supported: # $ % * + , - . : = ? @ [ ] ^ _ { } ~.
3. Click Confirm to accept the change.
To configure AES keys via phone user interface:
1. Press Menu->Advanced (default password: admin) ->Auto Provision.
2. Enter the values in the Common and MAC-Oriented AES fields.
AES keys must be 16 characters and the supported characters contain: 0-9, A-Z, a-z and
the following special characters are also supported: # $ % * + , - . : = ? @ [ ] ^ _ { } ~.
3. Press the Save soft key to accept the change.
Encrypting and Decrypting Configuration Files
Encrypted configuration files can be downloaded from the provisioning server to protect
against unauthorized access and tampering of sensitive information (e.g., login passwords,

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