Yealink T42U VoIP/SIP Phone (SIP-T42U), 12-Lines, 2 x Gigabit Ports, PoE, 2.7-inch Greyscale LCD Display

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The SIP-T42U IP phone is a feature-rich business tool for excellent communications and extended functionality. Coming with plentiful built-in programmable keys, this 12-line IP phone guarantees the enhanced productivity. United Yealink Optima HD Voice technology and wideband codec of Opus, the T42U awards you the superb audio quality and crystal-clear voice communications. The phone feels quicker and more responsive when performing call features. Moreover, the T42U 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.

Product Details

Data sheet

BluetoothBluetooth via BT40/BT41
CodecAMR-NB (optional), Opus, PCMU (G.711A), PCMA (G.711µ), G.723.1, G.729, G.729A, G.729B, G.729AB, G.726, iLBC
Display2.7" 192x64-pixel graphical LCD with backlight
DSS Keys6 line keys can be programmed up to 15 paperless DSS keys (3-page view)
DTMFIn-band, Out-of-band(RFC 2833) and SIP INFO
HD VoiceYes
Operating humidity10~95%
Operating temperature-10~50°C (+14~122°F)
Power Consumption1.3-2.9W
QoS802.1p/Q tagging (VLAN), Layer 3 ToS DSCP
SIP Accounts12
WiFiWi-Fi via WF40/WF50


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