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Yealink SIP-T48U Administrator's Guide

Yealink SIP-T48U
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Directory
335
Default
1
Supported
Devices
All phones except T48G, T46G, T42G, T41P and T29G
Related
Parameters
ldap.user
ldap.password
Remote Phone Book
The remote phone book is a centrally maintained phone book, stored on the remote server. Users only need the
access URL of the remote phone book. The IP phone can establish a connection with the remote server and down-
load the phone book, and then display the remote phone book entries on the phone.
Yealink phones support up to 5 remote phone books. The remote phone book is customizable.
Note: For T40P/T40G/T23P/T23G/T21(P) E2/T19(P) E2 phones, we recommend that you download less than 3000 remote
contacts (including one name and three numbers fields) from the remote server. For other phones, we recommend that you
download less than 5000 remote contacts (including one name and three numbers fields) from the remote server.
Topics
Remote Phone Book File Customization
Remote Phone Book Configuration
Example: Configuring a Remote Phone Book
Remote Phone Book File Customization
Yealink phones support remote phone book contact customization.
You can add multiple contacts at a time and/or share contacts between the phones using the supplied template files
(Menu.xml and Department.xml).
You can ask the distributor or Yealink FAE for remote phone book template. You can also obtain the remote phone
book template online: http://support.yealink.com/documentFront/forwardToDocumentFrontDisplayPage.
Topics
Remote Phone Book File Elements
Customizing Remote Phone Book File
Remote Phone Book File Elements
Yealink phones support two template files: Menu.xml and Department.xml.
The Menu.xml file defines the group/department of a remote phone book. The Department.xml file defines contact
lists for a department/group, which is nested in Menu.xml file.
The following table lists the elements you can use to add groups or contacts in the remote phone book file. We
recommend that you do not edit these elements.
Template Element Valid Values
Department.xml
<DirectoryEntry >
<Name > Contact Name </Name >
<Telephone label="Number Label" > Contact
Number</Telephone >
<Extra label="Label" > Extra Information</Extra >
</DirectoryEntry >
Add a contact in a department/group:
If the label of the contact number is left
blank, the default label "Number X" is
used.
Menu.xml
<MenuItem >
<Name > Department</Name >
Add a contact department/group file:
Specify the department/group name
between <Name > and </Name > ;

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Yealink SIP-T48U Specifications

General IconGeneral
Handset typeWired handset
Product typeIP Phone
Product colorGray
USB 2.0 ports quantityUSB 2.0 ports have a data transmission speed of 480 Mbps, and are backwards compatible with USB 1.1 ports. You can connect all kinds of peripheral devices to them.
Expansion module supportYes
Ethernet LAN (RJ-45) ports2
Display diagonal7 \
Display resolution800 x 480 pixels
Lines quantity- lines
Phonebook capacity1000 entries
Number of VoIP accounts16
Voice codecsAGC, AJB, AMR-WB, CNG, G.711, G.722, G.723.1, G.726, G.729ab, VAD, iLBC
Security algorithmsAES, HTTPS, SRTP, TLS
Ethernet LAN data rates10, 100, 1000 Mbit/s
Ethernet LAN interface typeGigabit Ethernet
Front camera-
AC adapter input voltage100 - 240 V
Operating temperature (T-T)0 - 40 °C
Operating relative humidity (H-H)10 - 95 %
Keypad number of keys29
Number of handles included1 pc(s)
Harmonized System (HS) code85171800
Weight and Dimensions IconWeight and Dimensions
Width226 mm
Height185 mm

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