The SIP-T48S IP Phone is a dynamic business communications solution for executives and professionals. This phone
offers a large touch screen that makes switching between pages and applications swift, easy and convenient. The
SIP-T48S is also with Yealink’s Optima HD Voice technology and wideband codec of Opus for unparalleled audio clarity.
Phone users will think they are sitting in the same room with one another. The phone uses Gigabit Ethernet technology
for rapid call handling. Plus, it works in conjunction with Bluetooth USB Dongle and Wi-Fi USB Dongle. The new T4S
series offers the same elegant appearance of the T4 line, but with improvements for greater interoperability and
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.
The SIP-T48S has a seven-inch, 800 x 480-pixel, backlit- color touch screen, which enables
a rich visual presentation and easy easy navigation. A built-in USB 2.0 port can also be
used for Bluetooth, Wi-Fi and USB call recording. The phone supports up to six expansion
modules, for up to 240 additional buttons with a screen-based LCD display and LED
system. Plus, it has 29 one-touch DSS keys which can be programmed to various features.
The Yealink T4S 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 T4S series simple to deploy, easy to maintain and upgrade. Furthermore, a
unified firmware and auto-p template that applies to all T4S phone models (T41S, T42S,
T46S and T48S), saves even more time and costs for businesses, as well as simplifies the
management and maintenance.
The SIP-T48S uses SIP over Transport Layer Security (TLS/SSL), which is the latest network
security technology. It’s also compatible with leading soft switch suppliers 3CX and