Yealink SIP-T48U User Manual

Assembling the Phone
Packaging Contents
1. Attach the stand, as shown below:
45
Packaging Contents
The following items are included in your package. If you find anything missing, contact your system administrator.
IP Phone
Handset
Handset Cord
Ethernet Cable
Stand
Quick Start Guide
Power Adapter
（Optional）
Wall Mount Bracket
（Optional）
Note: We recommend that you use the accessories provided or approved by Yealink. The use of unapproved third-party
accessories may result in reduced performance.
Assembling the Phone
Desk Mount Method
The two wall mount slots are plugged up
by silica gels. You can pull out the silica
gels when mounting your IP phone to a
wall.
Note: For more information on how to mount the IP phone to a wall, refer to Yealink Wall Mount Quick Installation Guide
for Yealink IP Phones.
ENGLISH
1
(2m CAT5E UTP Cable)
2. Connect the handset and optional headset, as shown below:

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