Yealink SIP-T48S Quick User Guide

Overview Telephone
Item
Description
1
Power Led
Displays the status of the device
2
Touch Screen
Displays various device information on the screen
Calls / messages and softkeys date and time
3
Headset Key
Turn the headset on/off if connected
4
Mute Key
Mutes the microphone and the calling party is still
audible
5
Hold Key
Puts a call on hold
6
Transfer Key
Transfers a call
7
Speaker Key
Switches the speaker on/off for hands-free calling
8
Message Key
Access to the Voice Mail
9
Redial Key
Access to the call history
10
Scroll Keys
Use the arrows to scroll through the displayed information / OK
confirm and X to cancel
11
Volume Key
Adjusts the volume of the handset / headset / speaker and
the ringtone
12
Key Pad
Provides the numbers, letters and special characters in context-sensitive
applications

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