Yealink SIP-T48U (NL)

SIP-T48U
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Description

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.

Specifications

Product

Brand Yealink
Itemcode SIP-T48U

Audio

Speakerphone Yes
Voice codecs AGC, AJB, AMR-WB, CNG, G.711, G.722, G.723.1, G.726, G.729ab, VAD, iLBC

Design

Handset type Wired handset
Product colour Grey
Product type IP Phone

Display

Backlight display Yes
Display diagonal 17.8 cm (7")
Display resolution 800 x 480 pixels
Display LED
Touchscreen Yes

Logistics data

Harmonized System (HS) code 85171800

Management features

Keypad number of keys 29

Network

Bluetooth Yes
Ethernet LAN data rates 10,100,1000 Mbit/s
Ethernet LAN interface type Gigabit Ethernet
Ethernet LAN Yes
Security algorithms AES, HTTPS, SRTP, TLS
Wi-Fi Yes

Operational conditions

Operating relative humidity (H-H) 10 - 95%
Operating temperature (T-T) 0 - 40 °C

Packaging content

Number of handles included 1 pc(s)

Phone features

Call forwarding Yes
Call hold Yes
Call waiting Yes
Caller ID Yes
Conference call Yes
Number of VoIP accounts 16
Phonebook capacity 1000 entries
Redialing Yes

Ports & interfaces

Ethernet LAN (RJ-45) ports 2
Expansion module support Yes
USB 2.0 ports quantity 2

Power

AC adapter input voltage 100 - 240 V
Power over Ethernet (PoE) Yes

Weight & dimensions

Depth 226 mm
Height 185 mm
Width 226 mm

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