Yealink SIP-T48S Quick Start Guide

About us
Founded in 2001, Yealink, a leading provider of VoIP Phone and IP communication solutions, has been focusing on VoIP products characterized by
reliable quality, easy deployment and a˛ordable price for more than a decade. Today, customers from over 140 countries rely on Yealink as the
backbone of global collaboration to extend the value of network communications.
More about Yealink
Since 2001, Yealink has continued to develop state-of-the art, hi-tech VoIP communication terminals that include IP video phones, IP phones
and USB phones. With a worldwide market in more than 140 countries, the company has also established a first-class international s rvice network.
Our priorities are quality, functionality, ease-of-use, customer support and competitive pricing. To provide new solutions for the future in this
fast-evolving sector, Yealink’s large, talented and highly-experienced VoIP R&D team is totally committed to the pursuit of excellence.
To date, we have passed more than 80 interoperability tests and meet certificatio requirements set by leading VoIP system and platforms. Yealink
works in close partnership with T-Mobile, Telefonica, Portugal Telecom and other leading telecommunication service providers.
YEALINK(XIAMEN) NETWORK TECHNOLOGY CO.,LTD.
Web: www.yealink.com
Copyright©2019YEALINK(XIAMEN) NETWORK
TECHNOLOGY CO.,LTD.All rights reserved.

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