Yealink SIP-T52S Administrator's Guide

Configuring Security Features
953
http://<phoneIPAddress>/servlet?p=settings-
autop&q=load
Phone User Interface
Configure AES keys.
Details of Configuration Parameters:
Parameters
Permitted Values
Default
static.auto_provision.update_file_mode
0 or 1
0
Description:
Enables or disables the IP phone only to download the encrypted files.
0-Disabled
1-Enabled
If it is set to 0 (Disabled), the IP phone will download the configuration files (e.g., sip.cfg,
account.cfg, <MAC>-local.cfg) and <MAC>-contact.xml file from the server during auto
provisioning no matter whether the files are encrypted or not. And then resolve these files
and update settings onto the IP phone system.
If it is set to 1 (Enabled), the IP phone will only download the encrypted configuration files
(e.g., sip.cfg, account.cfg, <MAC>-local.cfg) or <MAC>-contact.xml file from the server
during auto provisioning, and then resolve these files and update settings onto the IP
phone system.
Web User Interface:
None
Phone User Interface:
None
static.auto_provision.aes_key_in_file
0 or 1
0
Description:
Enables or disables the IP phone to decrypt configuration files using the encrypted AES
keys.
0-Disabled
1-Enabled
If it is set to 0 (Disabled), the IP phone will decrypt the encrypted configuration files using
plaintext AES keys configured on the IP phone.
If it is set to 1 (Enabled), the IP phone will download <xx_Security>.enc files (e.g.,
<sip_Security>.enc, <account_Security>.enc) during auto provisioning, and then decrypts
these files into the plaintext keys (e.g., key2, key3) respectively using the phone built-in key
(e.g., key1). The IP phone then decrypts the encrypted configuration files using

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