Yealink SIP-T48U A Revolutionary SIP Phone with a 7-inch Touch Screen User Manual
- June 7, 2024
- Yealink
Table of Contents
SIP-T48U
A Revolutionary SIP Phone with a 7-inch Touch Screen
Yealink presents a dynamic business communication solution to executives and
professionals with the new SIP-T48U IP phone. The phone employs an appealing
large touch screen that makes the switch between pages and applications swift,
easy and convenient. United Yealink Optima HD Voice technology and wideband
codec of Opus, the T48U awards you superb audio quality and crystal-clear
voice communications. Moreover, the T48U puts dual USB ports
in a phone that makes Bluetooth, Wi-Fi, USB headset and USB recording come
true, and you can use any two of them freely according to your needs. The
Yealink new T4U series offers the same elegant appearance as the T4 line, but
with improvements for greater interoperability and better collaboration.
Key Features and Benefits
Easy Customization and High Expansibility
The SIP-T48U has a seven-inch, 800 x 480-pixel, backlit-color touch screen,
which enables a rich visual presentation and easy navigation. Accompanied by
two USB ports, the T48U is your right-hand man in the office that makes
Bluetooth, Wi-Fi, USB headset, and USB recording possible, and you can use any
two of them freely according to your needs to enrich phone features.
Meanwhile, the phone not only has 29 one-touch DSS keys that can be easily
programmed to various features but also can connect up to three expansion
modules, for up to 180 additional buttons with a screen-based LCD display and
LED system.
HD Audio
Yealink Optima HD Voice technology combines cutting-edge hardware and software
with wideband technology for maximum acoustic performance. Being a totally
open, highly versatile audio codec, Opus is designed to perform a higher HD
audio quality than other wideband codecs in a high network bandwidth; However,
if your current network quality is poor, Opus can provide you with a better
audio quality than other narrowband codecs. And its hearing aid compatible
(HAC) The handset helps the person who is with hearing loss to hear the voice
more clearly.
Efficient Installation and Provisioning
Yealink T4U series supports efficient provisioning and effortless mass deployment with Yealink’s Redirection and Provisioning Service (RPS) and Boot mechanism to help you realize the Zero Touch Provisioning without any complex manual settings, which makes the T4U series simple to deploy, easy to maintain, and upgrade. Furthermore, a unified firmware and auto-p template that applies to all T4U phone models (T41U, T43U, T46U and T48U), saves even more time and costs for businesses, as well as simplifies the management and maintenance.
Secure Transport and Interoperability
The SIP-T48U uses SIP over Transport Layer Security (TLS/SSL), which is the latest network security technology. It’s also compatible with leading soft switch suppliers, such as 3CX, Broadsoft Broadworks.
- 7″ 800 x 480-pixel color touch screen with backlight
- Opus codec support
- Dual USB ports
- T4U Auto-P template unified
- T4U firmware unified
- Up to 16 SIP accounts
- Dual-port Gigabit Ethernet
- PoE support
- Wi-Fi via WF40/WF50
- Bluetooth via BT40/BT41
- USB recording
- Supports expansion modules
- Stand with two adjustable angles
- Wall mountable
Audio Features
HD voice: HD handset, HD speaker
Hearing aid compatible (HAC) handset
Acoustic Shield
Codecs: AMR-WB (optional), AMR-NB (optional), Opus, G.722, G.711(A/µ), G.723.1, G.729AB, G.726, iLBC
DTMF: In-band, Out-of-band (RFC 2833) and SIP INFO
Full-duplex hands-free speakerphone with AEC
VAD, CNG, AEC, PLC, AJB, AGC
Phone Features
16 VoIP accounts
Call hold, mute, DND
One-touch speed dial, hotline
Call forward, call waiting, call transfer
Group listening, emergency call
Redial, call return, auto-answer
3-way conferencing
Direct IP call without SIP proxy
Ring tone selection/import/delete
Set date time manually or automatically
Dial plan, XML Browser, action URL/URI
RTCP-XR (RFC3611), VQ-RTCPXR (RFC6035)
USB port (2.0 compliant) for:
– Bluetooth earphones through BT40/BT41
– Contact synchronization through BT40/BT41
– Wi-Fi through WF40/WF50
– USB call recording through USB flash drive
– USB headset
– Expansion Module EXP43
– Wireless Headset Adapter EHS40
Enhanced DSS key
Directory
Local phonebook up to 1000 entries
Black list
XML/LDAP remote phonebook
Smart dialing
Phonebook search/import/export
Call history: dialed/received/missed/forwarded
IP-PBX Features
Busy Lamp Field (BLF), Bridged Line Appearance (BLA)
Anonymous call, anonymous call rejection
Hot-desking, voice mail
Flexible seating, Executive and Assistant
Call park, call pickup
Centralized call recording, call recording
Visual voice mail
Display and Indicator
7″ 800 x 480-pixel color touch screen with backlight
24-bit depth color
LED for call and message waiting for an indication
Wallpaper
Intuitive user interface with icons and soft keys
Multilingual user interface
Caller ID with name, number, and photo
Screensaver
Power saving
Feature keys
29 one-touch DSS keys
7 features keys: message, headset, hold, mute, transfer, redial, hands-free speakerphone
6 navigation keys
Volume control keys
Illuminated mute key
Illuminated headset key
Illuminated hands-free speakerphone key
Interface
Dual-port Gigabit Ethernet
Power over Ethernet (IEEE 802.3af), class 3
2 x USB port (2.0 compliant)
1 x RJ9 (4P4C) handset port
1 x RJ9 (4P4C) headset port
Other Physical Features
Color: Classic Grey
Wall mountable (optional)
External Yealink AC adapter (optional): AC 100~240V input and DC 5V/2A output
USB output currency: 5V 1A
Power consumption (PSU): 1.8-3.8W
Power consumption (PoE): 2.3-4.7W
Dimension (WDHT): 266mm226mm185mm54mm
Operating humidity: 10~95%
Operating temperature: 0~40°C (+32~104°F)
Management
Configuration: browser/phone/auto-provision
Auto provision via FTP/TFTP/HTTP/HTTPS for mass deploy
Auto-provision with PnP
Zero-sp-touch, TR-069
Phone lock for personal privacy protection
Reset to factory, reboot
Package tracing export, system log
Network and Security
SIP v1 (RFC2543), v2 (RFC3261)
Call server redundancy supported
NAT traversal: STUN mode
Proxy mode and peer-to-peer SIP link mode
IP assignment: static/DHCP
HTTP/HTTPS web server
Time and date synchronization using SNTP
UDP/TCP/DNS-SRV(RFC 3263)
QoS: 802.1p/Q tagging (VLAN), Layer 3 ToS
DSCP
SRTP for voice
Transport Layer Security (TLS)
HTTPS certificate manager
AES encryption for configuration file
Digest authentication
OpenVPN, IEEE802.1X
IPv6
LLDP/CDP/DHCP VLAN
ICE
Package Features
Package content:
– Yealink SIP-T48U IP phone
– Handset with handset cord
– Ethernet Cable (2m CAT5E UTP Cable)
– Stand
– Quick Start Guide
– Power Adapter (Optional)
– Wall Mount Bracket (Optional)
Qty/CTN: 5 PCS
N.W/CTN: 7.9 kg
G.W/CTN: 8.4 kg
Giftbox size: 324mm263mm128mm
Carton Meas: 660mm338mm273mm
Compliance
Learn More
To find out how Yealink solutions can help your organization, visit us at
www.yealink.com or mail to
sales@yealink.com
About Yealink
Yealink is a global leading provider of enterprise communication and
collaboration solutions, offering video conferencing services to worldwide
enterprises. Focusing on research and development, Yealink also insists on
innovation and creation. With the outstanding technical patents of cloud
computing, audio, video, and image processing technology, Yealink has built up
a panoramic collaboration solution of audio and video conferencing by merging
its cloud services with a series of endpoints products. As one of the best
providers in more than 140 countries and regions including the US, the UK, and
Australia, Yealink ranks No.1 in the global market share of SIP phone
shipments.
Copyright
Copyright © 2019 YEALINK(XIAMEN) NETWORK TECHNOLOGY CO., LTD.
Copyright © 2019 Yealink(Xiamen) Network Technology CO., LTD. All rights
reserved. No parts of this publication may be reproduced or transmitted in any
form or by any means, electronic or mechanical, photocopying, recording, or
otherwise, for any purpose, without the express written permission of
Yealink(Xiamen) Network Technology CO., LTD.
Technical Support
Visit Yealink WIKI (http://support.yealink.com/) for firmware downloads,
product documents, FAQs, and more. For better service, we sincerely recommend
you to use the Yealink Ticketing system (https://ticket.yealink.com) to
submit all your technical issues.
YEALINK(XIAMEN) NETWORK TECHNOLOGY CO.,LTD.
Web: www.yealink.com
Addr: No.1 Ling-Xia North Road, High Tech Park,
Huli District, Xiamen, Fujian, P.R. China
Copyright©2019 Yealink Inc. All right reserved.
YEALINK NETWORK TECHNOLOGY CO., LTD.
Email: sales@yealink.com
Web: www.yealink.com
References
- Yealink Support
- Yealink | UC & C Terminal, Video Collaboration, Conference Phone, IP Phone, Headsets & Video Conferencing
- Yealink Ticket