Yealink SIP-T48S User Manual

Table of Contents
ix
Basic Call Features ...................................................................... 131
Placing Calls .......................................................................................................................................................... 132
Answering Calls .................................................................................................................................................... 134
Ending Calls ........................................................................................................................................................... 136
Redialing Numbers ............................................................................................................................................. 136
Recent Call In Dialing ........................................................................................................................................ 136
Auto Answer .......................................................................................................................................................... 138
Auto Redial ............................................................................................................................................................ 139
Call Completion ................................................................................................................................................... 141
Recall ........................................................................................................................................................................ 142
Call Mute ................................................................................................................................................................ 143
Mute a Call ........................................................................................................................................................ 144
Mute While Dialing ........................................................................................................................................ 144
Keep Mute ......................................................................................................................................................... 144
Call Hold/Resume ............................................................................................................................................... 145
Do Not Disturb (DND) ....................................................................................................................................... 147
Call Forward .......................................................................................................................................................... 152
Static Forwarding ............................................................................................................................................ 152
Dynamic Forwarding ..................................................................................................................................... 161
Call Transfer........................................................................................................................................................... 162
Blind Transfer .................................................................................................................................................... 162
Semi-attended Transfer................................................................................................................................ 163
Attended Transfer ........................................................................................................................................... 164
Call Waiting ........................................................................................................................................................... 164
Conference ............................................................................................................................................................ 165
Local Conference ............................................................................................................................................ 165
Network Conference...................................................................................................................................... 167
Call Park .................................................................................................................................................................. 168
FAC Mode .......................................................................................................................................................... 169
Transfer Mode .................................................................................................................................................. 171
Call Pickup ............................................................................................................................................................. 173
Directed Call Pickup ....................................................................................................................................... 174
Group Call Pickup ........................................................................................................................................... 176
Anonymous Call .................................................................................................................................................. 178
Anonymous Call Rejection .............................................................................................................................. 179
Advanced Phone Features ......................................................... 181
Busy Lamp Field (BLF) ........................................................................................................................................ 181
Configuring the BLF Feature on the IP Phone ..................................................................................... 181
Using BLF Feature on the IP Phone ......................................................................................................... 186
BLF List .................................................................................................................................................................... 188
Call Recording ...................................................................................................................................................... 189

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