Yealink SIP-T48S User Manual

User Guide for the SIP-T48S IP Phone
viii
Registration ............................................................................................................................................................. 34
Touch Screen Display .......................................................................................................................................... 35
Navigating Menus and Fields........................................................................................................................... 37
Entering Data and Editing Fields..................................................................................................................... 38
Customizing Your Phone ............................................................. 41
General Settings .................................................................................................................................................... 41
Wallpaper ............................................................................................................................................................. 41
Transparency ...................................................................................................................................................... 44
Screen Saver........................................................................................................................................................ 45
Power Saving ...................................................................................................................................................... 49
Backlight ............................................................................................................................................................... 52
Contrast ................................................................................................................................................................ 53
Language.............................................................................................................................................................. 54
Time & Date ........................................................................................................................................................ 55
Administrator Password ................................................................................................................................. 58
Key As Send ........................................................................................................................................................ 59
Phone Lock .......................................................................................................................................................... 59
Audio Settings ........................................................................................................................................................ 62
Volume .................................................................................................................................................................. 62
Ring Tones ........................................................................................................................................................... 64
Key Tone ............................................................................................................................................................... 66
BLF Ring Type ..................................................................................................................................................... 67
Contact Management ......................................................................................................................................... 68
Directory ............................................................................................................................................................... 68
Local Directory ................................................................................................................................................... 69
Blacklist ................................................................................................................................................................. 87
Remote Phone Book ........................................................................................................................................ 89
Call History Management .................................................................................................................................. 90
Viewing History Records ................................................................................................................................ 91
Placing a Call from History Records .......................................................................................................... 91
Adding a Contact to the Local Directory/Blacklist ............................................................................... 92
Deleting History Records ............................................................................................................................... 93
Disabling History Record ............................................................................................................................... 95
Search Source List in Dialing ............................................................................................................................ 95
System Customizations....................................................................................................................................... 97
Headset Use ........................................................................................................................................................ 97
Bluetooth Headset............................................................................................................................................ 99
DSS Keys ............................................................................................................................................................. 106
Account Management .................................................................................................................................. 118
Dial Plan .............................................................................................................................................................. 121
Emergency Number ....................................................................................................................................... 127
Live Dialpad ....................................................................................................................................................... 128
Hotline ................................................................................................................................................................. 128

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