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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Local Directory
IP phones maintain a local directory. The local directory can store up to 1000 contacts and 48
groups (47 groups for CP860 and CP920 IP phones). When adding a contact to the local
directory, in addition to name and phone numbers, you can also specify the account, ring tone
and group for the contact. Contacts and groups can be added either one by one or in batch
using a local contact file. Yealink IP phones support both *.xml and *.csv format contact files,
but only support *.xml format download for local contact file.
Contacts can be configured to have a backup on the provisioning server or a specific server.
The contact file format is *.xml.
Customizing a Local Contact File
You can add contacts one by one on the IP phone directly. You can also add multiple contacts
at a time and/or share contacts between IP phones using the local contact template file. After
setup, place the template file to the provisioning server and specify the access URL of the
template file in the configuration files. The existing local contacts on the IP phones will be
overridden by the downloaded local contacts.
You can ask the distributor or Yealink FAE for local contact template. You can also obtain the
local contact template online:
http://support.yealink.com/documentFront/forwardToDocumentFrontDisplayPage. For more
information on obtaining the local contact file, refer to Obtaining Boot Files/Configuration
Files/Resource Files on page 142.
The following table lists meaning of each variable in the local contact template file:
Element
Values
Description
root_group
no
Group list’s root element.
group
no
Group’s root element.
display_name
All Contacts
Blacklist
An element of group.
Group name.
ring
Format of the value:
System ring tone:
Auto
Silent.wav
Splash.wav
RingN.wav (integer N ranges from 1 to 8)
Custom ring tone:
Name.wav
An element of group.
Group ring tone.
root_contact
no
Contact list’s root element.
contact
no
Contact’s root element.
display_name
String
An element of contact.
Contact name.

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