Yealink SIP-T48S User Manual

User Guide for the SIP-T48S IP Phone
34
wireless network again.
Deactivating the Wi-Fi Mode
To deactivate the Wi-Fi mode via phone user interface:
1. Tap ->Basic->Wi-Fi.
2. Tap the Off radio box of the Wi-Fi field.
The Wi-Fi icon disappears from the touch screen.
Wi-Fi is configurable via web user interface at the path Network->Wi-Fi.
Registration
Generally, your phone will be deployed with multiple other phones. In this case, your system
administrator will configure the phone parameters beforehand, so that after you start up your
phone, the phone will be registered and ready for use. The SIP-T48S IP phone supports up to 16
accounts. If your phone is not registered, you may have to register it. For more information on
how to register your phone, refer to Account Management on page 118.

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