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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auto provisioning.
The contact file is named after the MAC address of the IP phone. MAC address, a unique 12-
digit serial number assigned to each phone, can be obtained from the bar code on the back of
the IP phone. For example, if the MAC address of an IP phone is 00156574B150, the name of
the contact file is 00156574b150-contact.xml (case-sensitive).
Procedure
Backing up the local contact file can be configured using the configuration files.
Central Provisioning
(Configuration File)
<y0000000000xx>.cfg
Configure the IP phone to back up
the local contacts.
Parameters:
static.auto_provision.local_contact.b
ackup.enable
static.auto_provision.local_contact.b
ackup.path
Details of the Configuration Parameters:
Parameters
Permitted
Values
Default
static.auto_provision.local_contact.backup.enable
0 or 1
0
Description:
Enables or disables the IP phone to upload the <MAC>-contact.xml file to the server each
time the contacts update and download the <MAC>-contact.xml file from the server during
auto provisioning.
0-Disabled
1-Enabled
If it is set to 0 (Disabled), the IP phone does not upload the contact file “<MAC>-
contact.xml” to the server, so the IP phone downloads the contacts in the “contact.xml”
from the access URL configured by the parameter “local_contact.data.url” or
“local_contact.data_photo_tar.url” during auto provisioning.
If it is set to 1 (Enabled), the IP phone uploads the contact file “<MAC>-contact.xml” to the
specific path configured by the parameter “static.auto_provision.local_contact.backup.path”
each time the contacts update; and downloads the contacts in the “<MAC>-contact.xml”
according to its MAC address from the specific path during auto provisioning.
Note: It does not affect the downloading of the contact avatar/icon files.
Web User Interface:
None
Phone User Interface:

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