Yealink SIP-T48S Quick User Guide

Via the spreaker:
Press .
Via the headset:
Press .
Note: You may ignore an incoming call by tapping the Reject soft key.
Ending a call
Via the handset:
Hand up the handset or press the End Call soft key.
Via the spreaker:
Press or press the End Call soft key.
Via the headset:
Press the End Call soft key.
Redial
Press to enter the Placed call list and then tap the desired entry.
Press twice when the phone is idle to call the last dialed number.
Muting a Call
Press to mute the microphone during a call.
Press again to un-mute the call.
Putting a call on hold
1. Press or tap the Hold soft key during an active call.
2. To resume a held call, press the Resume soft key.
3. If there is only one call on hold, press or tap the Resume soft key.
4. If there is more than one call on hold, tap the call you want to resume, then press
or tap the Resume soft key.
Transfering a call
There are three ways to transfer a call: Blind Transfer, Attended Transfer and Semi-
Attended Transfer.

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