Yealink SIP-T48U Administrator's Guide

Phone Customization
243
l The value of attributes in a line element is the default value of the corresponding attribute in the key element. For
example, if you have not configured the width attribute in the key element, the key will automatically use the
value of width attribute configured in line element as the width.
l The size of the onscreen keyboard is 800 pixels wide by 256 pixels high. If the area of the keyboard you con-
figured is larger than the size of the keyboard, the part of the area beyond the keyboard will not be shown.
Customizing a Layout File
1.
Open the template file.
2.
Edit the corresponding string in the file.
3.
Save the change and place this file to the provisioning server.
Input Method Configuration
The following table lists the parameters you can use to configure the input method.
Parameter
gui_input_method.url <y0000000000xx>.cfg
Description
It configures the access URL of the custom keypad input method file for the phone user interface.
Example:
gui_input_method.url = http://192.168.10.25/custom_ime.txt
During the auto provisioning process, the phone connects to the provisioning server “192.168.1.25”,
and downloads the custom keypad input method file “custom_ime.txt”.
gui_input_method.url = http://192.168.10.25/Russian_ime.txt
During auto provisioning, the phone connects to the provisioning server “192.168.1.25”, and down-
loads the custom keypad input method file “Russian_ime.txt“ for the Russian language.
Note: If you want to upload a custom keypad input method file for the desired language, you can
name the file “language name_ime.txt”. The valid language names are: English, Chinese_S,
Chinese_T, French_CA, French, German, Italian, Polish, Portuguese, Portuguese_LA, Spanish, Span-

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