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Yealink SIP-T48U Administrator's Guide

Yealink SIP-T48U
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Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
128
Default
-1
Supported
Devices
W53H, W56H
Handset UI
OK > Settings > Display > Screen Saver
Handset Name
The handset will be assigned a name by default if successfully registered to the phone. You can personalize the
handset name.
Topic
Handset Name Configuration
Handset Name Configuration
The following table lists the parameter you can use to configure the handset name.
Parameter
handset.X.name
[1]
<y0000000000xx>.cfg
Description
It configures the name of the handset.
Note: If it is set to blank, it will display the corresponding default handset name.
Permitted
Values
String within 24 characters
Default
The handset name for handset 1 is Corded phone.
The handset name for handset 2 is Handset 2.
The handset name for handset 3 is Handset 3.
The handset name for handset 4 is Handset 4.
The handset name for handset 5 is Handset 5.
Web UI
Status > Handset > Handset Name > Handset X
[1]
Phone UI
T57W/T54W:
Menu > DECT Settings > Handsets > Handset X
[1]
T53W/T53:
Menu > Settings > DECT Settings > Handsets > Handset X
[1]
Handset UI
W53H/W56H:
OK > Settings > Handset Name
DD Phone/CP930W:
Menu > Settings > Basic Settings > Phone Name
[1]
X is the handset ID. X=2-5.
Number Assignment
After the handset is registered to the phone, you can assign one or more outgoing lines or incoming lines for the
handset. The phone acts as the Handset 1 (Corded phone).
The handset can only use the assigned outgoing line(s) to place calls. When multiple outgoing lines are assigned
to the handset, the handset uses the first line as the default outgoing line. You can change the default outgoing line
of the handset.

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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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