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Yealink SIP-T42U

A Well-Rounded SIP Phone

Yealink T42U

A Well-Rounded SIP Phone for Clear Communications

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 six-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.

Phone Features

6 VoIP accounts

One-touch speed dial, redial

Call forward, call waiting, call transfer, call hold

Call return, group listening, emergency call

Mute, auto answer, DND, hoteline

3-way conference call

Direct IP call without SIP proxy

Physical Features

2.7″ 192×64-pixel graphical LCD with backlight

LED for call and message waiting indication

Dual-color (red or green)

Illuminated LEDs for line status information

6 line keys with LED

Programmed up to 15 paperless DSS keys (3-page view)

IP-PBX and BroadSoft Features

Busy Lamp Field (BLF)

Bridged Line Apperance (BLA)

Anonymous call, anonymous call rejection

Hot-desking, voice mail

Flexible seating, Executive and Assistant

Call park, call pickup

Centralized call recording

Visual voice mail

Call recording

Network and Security

SIP v1 (RFC2543), v2 (RFC3261)

Call server redundancy supported

NAT traversal: STUN mode

Proxy mode and peer-to-peer SIP link mode

IP assignment: static/DHCP

HTTP/HTTPS web server

Time and date synchronization using SNTP


Configuration: browser/phone/auto-provision

Auto provision via FTP/TFTP/HTTP/HTTPS

Auto-provision with PnP

Broadsoft device management

Zero-sp-touch TR-069

Phone lock for personal privacy protection

Reset to factory, reboot

Package tracing export, system log

Works With
Testel Systems
Testel Systems
Testel Systems
Testel Systems
Testel Systems
Testel Systems
Testel Systems
Testel Systems
Testel Systems
Testel Systems
Testel Systems
Testel Systems