Yealink SIP-T48S Quick User Guide

Navigating the touch screen
• To enter the main menu, tap .
• To return to the idle screen, tap .
• To go back to the previous menu, tap .
• To select a soft key, tap the soft key.
• To select an item, tap the item.
• To turn pages, tap on the touch screen.
• To scroll through values in a pull-down list, press .
Making a call
Via the handset:
1. Pick up the handset.
2. Enter the number.
3. Press the Send soft key.
Via the spreaker:
1. With the handset on-hook, press .
2. Enter the number, then press the Send soft key.
Via the headset:
1. With the headset connected, press to activate de headset mode.
2. Enter the number, and then press the Send soft key.
Note: During a call you may alternate between headset, hands-free speaker and handset modes by pressing the
Headset key or Speaker key or by picking up the handset. Headset mode requires a headset be connected to the
phone.
Multiple calls:
1. Press the line key. The active call is placed on hold.
2. Enter the desired number using the keypad.
3. Tap the Send soft key.
4. You can press to switch between calls, then tap again to resume the
desired call.
Answering a call
Via the handset:
Pick up the handset.

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