Yealink SIP-T48U Administrator's Guide

Phone Provisioning
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Phone Provisioning
You can provision multiple phones with the same settings for large-scale deployments.
For more information, refer to Yealink SIP IP Phones Auto Provisioning Guide.
Topics
Boot Files, Configuration Files, and Resource Files
Provisioning Methods
Setting Up a Provisioning Server
Keeping User’s Personalized Settings after Auto Provisioning
Example: Deploying Phones from the Provisioning Server
Boot Files, Configuration Files, and Resource Files
You can use boot files, configuration files, and resource files to configure phone features and apply feature settings
to phones. You can create or edit these files using a text editor such as Notepad++.
You can ask the distributor or Yealink FAE for template files. You can also obtain the template files online: http://sup-
port.yealink.com/documentFront/forwardToDocumentFrontDisplayPage.
Topics
Boot Files
Configuration Files
Resource Files
Files Download Process
Boot Files
Yealink phones support boot files. The boot files maximize the flexibility to allow you to customize features and set-
tings for multiple phones.
With the boot file, you can specify which configuration files should be downloaded. It is effective for you to provision
the phones in different deployment scenarios:
l For all phones
l For a group of phones
l For specific phone models
l For a single phone
Yealink phones support two types of boot files: common boot file and MAC-Oriented boot file. You can use the
default boot template file “y000000000000.boot” to create MAC-Oriented boot file by making a copy and renaming
it.
Note: You can select whether to use the boot file or not according to your deployment scenario. If you do not want to use the
boot file, please go to Configuration Files.
Topics
Common Boot File
MAC-Oriented Boot File
Boot File Attributes
Customizing a Boot File
Common Boot File
Common boot file, named y000000000000.boot, is effective for all phones. You can use a common boot file to
apply common feature settings to all of the phones rather than a single phone.

Yealink SIP-T48U Specifications

General

Handset type	Wired handset
Product type	IP Phone
Product color	Gray
USB 2.0 ports quantity	USB 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 support	Yes
Ethernet LAN (RJ-45) ports	2
Display diagonal	7 \
Display resolution	800 x 480 pixels
Lines quantity	- lines
Phonebook capacity	1000 entries
Number of VoIP accounts	16
Voice codecs	AGC, AJB, AMR-WB, CNG, G.711, G.722, G.723.1, G.726, G.729ab, VAD, iLBC
Security algorithms	AES, HTTPS, SRTP, TLS
Ethernet LAN data rates	10, 100, 1000 Mbit/s
Ethernet LAN interface type	Gigabit Ethernet
Front camera	-
AC adapter input voltage	100 - 240 V
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	10 - 95 %
Keypad number of keys	29
Number of handles included	1 pc(s)
Harmonized System (HS) code	85171800

Weight and Dimensions

Width	226 mm
Height	185 mm