Yealink T48s Quick Guide

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Yealink T4 8S Quick Guide
Deskphone Features
Feature Description
1. Line keys—enables you to select a phone line, view calls on a line, or quickly call a favorite contact.
2. Soft keys— enables you to select context-sensitive keys that display along the bottom of the screen.
3. Navigation keys—scrolls through information and options displayed on the phone screen.
4. Cancel key—cancels action or rejects incoming calls.
5. Volume keys—adjusts the volume of the handset, headset, and speaker.
6. Headset key—enables you to place and receive calls through a headset.
7. Mute/Unmute key—mutes audio during calls and conferences.
8. Hold key—holds an active call or resumes a held call.
9. Voicemail key—enables you to access voicemail messages.
10. Transfer key—transfer an active call to a contact.
11. Redial key— enables you to dial the last called number or extension.
12. Speakerphone key—enables you to place and receive calls using the speakerphone.
Navigation keys
Hold key
Headset key
Cancel key
Volume keys
Mute/Unmute key
Transfer key
Speakerphone key
Redial key
Voicemail key

Yealink T48s Specifications

General

Full duplex	Yes
Lines quantity	- lines
Phonebook capacity	- entries
Number of VoIP accounts	-
Voice codecs	AGC, AJB, CNG, G.711alaw, G.711ulaw, G.722, G.723.1, G.726, G.729A, G.729B, PLC, SILK, VAD, iLBC
Compatible products	Skype for Business
Dual-Tone Multi-Frequency (DTMF) modes	In-band, Out-of band, SIP info
Mounting	Desk/Wall
Handset type	Wired handset
Product type	IP Phone
Product color	Black
Volume control	Digital
USB 2.0 ports quantity	1
Ethernet LAN (RJ-45) ports	2
AC adapter input voltage	100 - 240 V
AC adapter output current	2 A
AC adapter output voltage	5 V
Power consumption (typical)	4.9 W
Power consumption (Power over Ethernet (PoE))	7.5 W
Front camera	No
Security algorithms	HTTPS, MD5, SRTP, TLS
Networking standards	IEEE 802.1Q, IEEE 802.1p, IEEE 802.1x, IEEE 802.3af
Ethernet LAN interface type	Gigabit Ethernet
Supported network protocols	SIP v1 (RFC2543), v2 (RFC3261), LLDP-MED VLAN, IPv4/IPv6, UDP/TCP/DNS-SRV (RFC 3263)
Cables included	LAN (RJ-45)
Number of handles included	1 pc(s)
Display diagonal	7 \
Touchscreen type	Capacitive
Display resolution	800 x 480 pixels
Graphical user interface (GUI) language	Multi
Storage temperature (T-T)	-10 - 50 °C
Operating relative humidity (H-H)	10 - 95 %
Master (outer) case width	660 mm
Master (outer) case length	338 mm
Master (outer) case weight	9000 g
Master (outer) case net weight	8200 g
Quantity per master (outer) case	5 pc(s)

Weight and Dimensions

Depth	226 mm
Width	266 mm
Height	185 mm
Package depth	324 mm
Package width	263 mm
Package height	128 mm