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Adding WiFi with the Yealink WF40 Dongle

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Sometimes, even with a desk phone, you just need WiFi. The plugs and the desks might be on the opposite ends of the office, or maybe your cabling isn’t working out like you want it to. Whatever the reason, Yealink has a solution: the Yealink WF40 WiFi Dongle.

Yealink WF40 is a plug-and-play solution that adds wireless connectivity to a compatible* Yealink VoIP phone. It’s just a little plug, like a Bluetooth adapter for a wireless mouse. And just like one of those adapters, the hardest part of using it is plugging it into the USB slot.

How to Use the Yealink WF40

VoIP phones are most often connected to the LAN using an Ethernet cable. WF40 allows your Yealink VoIP phone to connect to the LAN using WiFi.

When installing the WF40, the first thing you need to do is unplug the LAN cable from the phone. The WF40 will not work if your phone is plugged into the LAN. In other words, you can’t have both wired and wireless connectivity at the same time. This means that you can’t use PoE while using the WF40, so you’ll need to be using the power adapter.

With that out of the way, here’s how to use the Yealink WF40 USB dongle:

  1. Plug in the WF40 into the USB slot on the back of the phone
  2. The phone will ask you if you want it to scan for wireless networks
  3. Select Ok
  4. When scanning is complete, select the wireless network you want to join
  5. Enter the password
  6. Select Ok
  7. The phone will let you know when it has connected

That’s it! Your Yealink VoIP phone now connects to the wireless network.

Note: The WF40 supports the following WiFi protocols: IEEE 802.11b/g/n . This means that it only picks up the 2.4 GHz frequency range, so if your WiFi network is set up only in the 5 GHz range, the WF40 won’t pick it up.

* Currently, the WF40 is only compatible with the Yealink SIP-T48G running firmware version 35.80.0.95 or later. Support will be rolled out to many more Yealink VoIP phones soon.

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