Yealink SIP-T48U Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
242
No. Function Key Usage
5 right Position the cursor.
6 up Position the cursor.
7 down Position the cursor.
8 hide Hide the onscreen keyboard.
9 shift
Switch between the uppercase input mode and the lowercase input
mode.
10 lang Change the language of the keyboard.
11 switch Change input mode.
Customizing an Ime 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.
Layout File Elements and Attributes
The following lists the elements and attributes you need to understand in the Layout file. We recommend that you
do not edit these elements and attributes.
Elements
Description
<KeyboardLayout >
</KeyboardLayout >
Indicate the start and end of a Layout file.
<Line >
</Line >
Specify a line on the keyboard.
The first Line element represents the first line of the keyboard.
<Key >
</Key >
Specify a key on the keyboard.
The first key element in the Line element represents the first key of this line.
l The Line elements and Key elements both have four attributes: LeftIndent, TopIndent, Width, and Height (all
attribute values are in pixels). The following picture shows the meaning of four attributes:

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