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Yealink® SIP-T42S desk phone

What is the Yealink SIP-T42S desk phone?

The Yealink SIP-T42S is a desk phone for HD VoIP (Voice over Internet Protocol) business calls.

How do I use a Yealink VoIP desk phone?

You use a Yealink desk phone exactly as you would use any other desk phone. You make and receive calls in the same way you are used to, the call just connects over the internet instead of a phone line.

Read more about how to use your desk phone >

For instructions on how to perform specific tasks with your desk phone, see the manufacturer's instructions. There's a link in the Resources box at the top of this article.

Your desk phone interacts with One Net Business

There are several features of your Yealink desk phone that interact directly with One Net Business.

  • You can use Feature Access Codes (FACs) to do tasks including pulling a call onto your desk phone, parking a call or switching call forwarding on and off.
  • Some buttons on your desk phone interact with specific One Net Business services.
  • Your desk phone has direct access to your One Net Business call history and your company's main phone book, so you always see the latest information.
  • You can personalise the programmable buttons of your desk phone using One Net Manager.

Who is the Yealink SIP-T42S for?

The Yealink SIP-T42S is a basic desk phone suitable for users managing a moderate number of calls. This desk phone is ideal for general office use.

Read about other desk phones >

Key features of the Yealink SIP-T42S

With its Gigabit Ethernet switch, the Yealink SIP-T42S is the entry to high-speed connectivity. The dedicated RJ-9 headset port allows you to use an analogue headset.

Key features

  • Power over Ethernet support: PoE 802.3af, Class 2
  • Support for 12 lines
  • 2.7-inch backlit black-and-white LCD display, 192 x 64px
  • Six programmable LED keys (3-page view)
  • Gigabit switch
  • Speakerphone
  • Support for RJ-9 headsets
  • Support for USB 2.0

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