Yealink SIP-T48S Quick Start Guide

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 a ything missing, contact your system administrator.
IP Phone
Handset
Handset Cord
Ethernet Cable
Stand
Quick Start Guide
Power Adapter 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 FTP Cable)
Wireless Headset Adapter EHS36
2. Connect the handset and optional headset, as shown below:
Note: The headset or wireless headset adapter EHS36 should be purchased separately. The EXT port can also be used to connect the
expansion module EXP40. For more information on how to use the EHS36 and EXP40, refer to Yealink EHS36 User Guide and
Yealink EXP40 User Guide.
T48S

Yealink SIP-T48S Specifications

General

Mounting	Desk/Wall
Handset type	Wired handset
Product type	IP Phone
Product color	Black
Keypad illumination	Yes
Display diagonal	7 \
Display resolution	800 x 480 pixels
AC adapter input voltage	100 - 240 V
AC adapter output current	2 A
AC adapter output voltage	5 V
USB 2.0 ports quantity	1
Ethernet LAN (RJ-45) ports	2
Front camera	No
Voice codecs	CNG, G.711Mu, G.711a, G.722, G.723.1, G.726, G.729ab, VAD, iLBC
Lines quantity	16 lines
Phonebook capacity	1000 entries
Number of VoIP accounts	16
Dual-Tone Multi-Frequency (DTMF) modes	In-band, Out-of band, SIP info
Keypad number of keys	42
Security algorithms	AES
Networking standards	IEEE 802.3af
Ethernet LAN data rates	10, 100, 1000 Mbit/s
Ethernet LAN interface type	Gigabit Ethernet
Supported network protocols	SIP v1, SIP v2, LLDP/CDP/DHCP, OpenVPN, IEEE802.1X, IPv6, HTTPS
Operating temperature (T-T)	-10 - 50 °C
Operating relative humidity (H-H)	10 - 95 %
Cables included	LAN (RJ-45)
Number of handles included	1 pc(s)
Harmonized System (HS) code	85171800

Weight and Dimensions

Depth	225 mm
Width	266 mm
Height	185 mm
Package depth	263 mm
Package width	324 mm
Package height	128 mm