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The SIP-T46S IP phone is the ultimate communications tool for busy executives and professionals. In addition to offering better overall performance than the T46G, this device has a faster interface with a rich, high-resolution TFT color display. Built with Yealink Optima HD technology and wideband codec of Opus, this device enables crystal clear communications. The SIP-T46S is also built with Gigabit Ethernet technology, for rapid call handling and use with accessories like a Bluetooth USB Dongle and a Wi-Fi USB Dongle. The new T4S series offers the same elegant appearance of the T4 line, but with improvements for greater interoperability and collaboration.


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.

Easy Customization and High Expandability

The SIP-T46S comes with two Gigabit Ethernet ports, one of which is suitable for Power over
Ethernet (PoE). A built-in USB 2.0 port can also be used for Bluetooth, Wi-Fi and USB
recording. The SIP-T46S supports up to six expansion models, for up to 240 additional
buttons with a screen-based LCD display and LED system. Plus, it has three pages of buttons
which can be programmed with up to 27 paperless DSS keys. 

Yealink T46U 16 Line IP Handset

  • > Revolutionarily new design 
    > Yealink Optima HD voice 
    > Dual-port Gigabit Ethernet
    > 4.3" 480 x 272-pixel color 
    display with backlight
    > Built-in a USB port, support 
    Bluetooth headset (Through 
    USB Dongle) 
    > Up to 16 SIP accounts
    > Paper label free design 
    > PoE(802.3af) class support
    > Headset, EHS support
    > Supports expansion modules
    > Stand with 2 adjustable angles
    > Wall mountable
    > Simple, flexible and secure
    provisioning options

  • Audio Features

    > HD voice: HD handset, HD speaker
    > Hearing aid compatible (HAC) handset
    > Codecs: AMR-WB (optional), AMR-NB (optional),
     Opus*, G.722, G.711(A/?), G.723.1, G.729AB,
     G.726, iLBC
    > DTMF: In-band, Out-of-band (RFC 2833) and SIP
    > Full-duplex hands-free speakerphone with AEC

    Phone Features

    > 16 VoIP accounts
    > Call hold, mute, DND
    > One-touch speed dial, hotline
    > Call forward, call waiting, call transfer
    > Group listening, SMS, 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 earphone through BT40,
     Contact synchronization through BT40,
     Wi-Fi through WF40,
     USB call recording through USB flash drive
    > Enhanced DSS key


    Display and Indicator

    > 4.3" 480 x 272-pixel color display with backlight
    > 16 bit depth color
    > LED for call and message waiting indication
    > Dual-color (red or green) illuminated LEDs for
     line status information
    > Wallpaper
    > Intuitive user interface with icons and soft keys
    > Multilingual user interface
    > Caller ID with name and number
    > Screensaver
    > Power saving

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