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Wi-Fi USB Dongle WF40
User Guide
Wi-Fi USB Dongle WF40 is used to connect IP phones to
the organization’s wireless network. Wi-Fi USB dongle is a
cost-effective solution for small office wireless networking,
which allows you to experience the convenience of wireless
networking.
Packaging Contents
Wi-Fi USB Dongle
User Guide
www.yealink.com
The following items are included in your package. If you find
anything missing, contact your system administrator.
Troubleshooting
Why can’t the IP phone enable Wi-Fi feature?
Why can’t the IP phone connect to Wi-Fi?
- Connect an Ethernet cable to the IP phone.
- Unplug the Wi-Fi USB dongle from the IP phone.
The IP phone toggles the Wi-Fi to off.
Ensure the Ethernet cable is removed.
Ensure the Wi-Fi USB dongle is not broken and works well.
If the network is secure, ensure the entered password is
right.
Ensure your gateway/router enables the wireless network
feature.
Reboot your gateway/router.
Turn off the Wi-Fi feature on the IP phone and then turn it
on again.
Why is the wireless signal strength low?
Ensure the IP phone and your gateway/router are within the
working range and there is no obvious interference (walls,
doors, etc) between them.
The wireless network is changed to the wired network, and
the IP phone toggles the Wi-Fi to off.
Copyright 2015 YEALINK NETWORK TECHNOLOGY CO.,LTD.
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Manually Connecting the IP phone to an Available Wiereless Network
To manually connect the IP phone to an available wireless network (take the SIP-T48G
IP phone for example):
Assembling the Wi-Fi USB Dongle
Assembling the Wi-Fi USB Dongle, as shown below:
To assemble the Wi-Fi USB Dongle:
1. Insert the Wi-Fi USB Dongle into the USB port on the back
of the phone.
Before setting up wireless, it is important to note that the IP
phone must be connected to its power adapter and NO
Ethernet cable (either wired Ethernet or Ethernet over Power)
should be connected.
WiFi USB Dongle WF40 User Guide
www.yealink.com
6. Tap OK.
2. Tap OK.
Disabling Wi-Fi Feature on the IP Phone
To disable Wi-Fi feature, do one of the following (take the SIP-T48G IP phone for
example):
- Tap ->Basic->Wi-Fi.
Mark the Off radio box in the Wi-Fi field.
1. Insert the Wi-Fi USB Dongle WF40 into the USB port on the
back of the phone when the phone is in the idle state.
The touch screen prompts: Wi-Fi adapter connected. Scan for available
Wi-Fi neworks?
The IP phone will toggle the Wi-Fi to on and search for
available wireless networks in your area.
3. (Optional.) To re-search the available network, tap the Scan
soft key.
4. Tap the desired wireless network (SSID) to connect to it.
You can also tap at the end of the desired SSID, and
then tap Connect.
Once the connection has completed successfully, the prompt
Connected appears at the end of the desired SSID.
5. If the network is secure, enter its password in the Wi-Fi
Password field.
Note: Contact your network administrator for the Wi-Fi
password.
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