Yealink SIP-T48S User Manual

User Guide for the SIP-T48S IP Phone
22
Connecting to the Wired Network
You can connect your phone to a wired network.
Before connecting your phone to the wired network, it is important to note that the Wi-Fi
feature should be disabled. For more information, refer to Connecting to the Wireless Network
on page 22.
Note
Connecting to the Wireless Network
Yealink SIP-T48S IP phone supports Wi-Fi feature. You can connect your phone to a wireless
network. The wireless network is more convenient and cost-effective than wired network. The PC
port is unavailable when using wireless network. For more information on how to connect to a
wireless network, refer to Wireless Network Settings on page 26.
Phone Initialization
After your phone is powered on, the system boots up and performs the following steps:
Automatic Phone Initialization
The phone finishes the initialization by loading the saved configuration. The touch screen
displays “Welcome Initializing…Please wait” during the initialization.
The phone can also share the network with another network device such as a PC (personal
computer). This is an optional connection. For more information on this function, contact your
system administrator.

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