Yealink SIP-T48U Configuration Guide

This Configuration Guide is written as a general guide on how to configure the Yealink phone
model SIP-T48U to work with PBXware 5.3.6.
Video Tutorial
Please refer to the video tutorial explaining the Auto Provisioning setup for the Yealink Phone on
PBXware 5.
Requirements
Identifying Phone Model
To start and successfully complete registration of your Yealink phone you need to know which
phone model to set up.
On the back of each Yealink phone, there is model information that you should check. Although
various phone models can have exactly the same requirements and installation procedures,
phone models can also have significantly different requirements and installation procedures, so
that is why it is important to know the model you own which results in you setting up the device
successfully.
Phone Firmware
Make sure that your phone is loaded with an appropriate firmware version, 108.84.0.30.
■
To find out the firmware version of your Yealink phone model, open a new browser window
■
and enter your phone IP address in order to access the phone's web administration interface
login screen. Example: http://192.168.1.22.

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