T48U- Data Sheet
SIP-T48U
www.yealink.com
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 and 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 the 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.
7-inch
Touch Screen
• 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
• Paperless label design
• Headset, EHS support
• Wi-Fi via WF40/WF50
• Bluetooth via BT40/BT41
• USB recording
• Supports expansion modules
• Stand with two adjustable angles
• Wall mountable
Optima
HD Voice
Dual USB
Ports
Opus Codec
Unified
Firmware
Acoustic
Shield
Expansion
Module
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) 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.