Yealink SIP-T48U Configuration Guide

If you choose to use TFTP server type, enter tftp:// followed by Hostname or IP
Address
Example of a Hostname: tftp://voip.bicomsystems.com
Example of an IP Address: tftp://192.168.1.10
Click the Autoprovision Now button.
■
A pop up window will show up.
■
Click the OK button to confirm your action.
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You will have to wait for a couple of seconds for the configuration to be updated. NOTE: Do
■
not power off your phone.
The Auto provisioning process will start during the phone's reboot process, the phone will pick
■
up an appropriate configuration file from PBXware. If everything is done as described above,
you should have successfully registered your phone to PBXware.
Dial *123 to verify registration.
Using TLS
NOTE: If you choose to use HTTPS as a protocol for registering your phone, please do the
following:
Open a new browser window and enter your phone IP address, e.g. http://192.168.1.22.
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Enter username and password and press the Confirm button. NOTE: The factory default
■
login details are as follows: username is admin and password is admin.
Click the Security tab and go to Trusted certificates and disable the Only Accept Trusted
■
Certificates option.
DNS SRV
DNS SRV

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