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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During the auto provisioning process, the IP phone connects to the provisioning server
“192.168.10.25”, and downloads the file “Contact.tar”.
Note
Scenario C - Using the Custom Avatar and Custom Icon for Contact
This scenario is only applicable to SIP-T48G/S IP phones.
Scenario Conditions I:

Provisioning server URL: tftp://192.168.10.25.

The custom avatars and icons: “cutom1.jpg” and “cutom2.png”. They are all uploaded to
the provisioning server in advance.
Scenario Conditions II:

Provisioning server URL: tftp://192.168.10.25.

The custom avatars: “cutom1.jpg” and “cutom2.png”. They are compressed as a tar
formatted file (photo1.tar).

The custom icons: “cutom1.jpg” and “cutom2.png”. They are compressed as a tar
formatted file (photo2.tar).
For more information on generating a tar formatted file, refer to Preparing the Tar Formatted
File on page 357.
Note
To customize a local contact file:
1. Open the template file using an ASCII editor.
2. For each group that you want to add, add the following string to the file. Each starts on a
separate line:
<group display_name="" ring=""/>
3. For each contact that you want to add, add the following string to the file. Each starts on a
separate line:
The custom avatar and icon can be different, but make sure the icon name is the same as avatar
name.
Note that if you are using method 3 to specify custom avatar for contacts, the name of the avatars
TAR file must be photo.tar (case-sensitive), and the name of the contact XML file must be
ContactData.xml (case-sensitive).
If you have configured to back up the local contacts to the server, the IP phone will download the
contact file “<MAC>-contact.xml” from the backup path from the server and display the
downloaded contacts in the local directory list. The contacts in the local contact file “contact.xml”
downloaded from the provisioning server don’t take effect. But the avatars downloaded take
effect. For more information on how to back up the local contacts, refer to Backing up the Local
Contacts on page 367.

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