Article ID:3842568

How To: Yealink - Connect Wifi and Bluetooth Dongles to CX400

Written By Jexter Reyes (Administrator)

Updated at June 8th, 2026

Symptoms

  • Connecting WiFi and Bluetooth dongles to CX400
     

Procedure

Wifi

Connecting the Wi-Fi dongle to CX400

  1. While the phone is in idle state, insert the Wi-Fi USB Dongle into the USB port on the back of the phone. 

    The LCD screen will prompt Wi-Fi adapter is added, scanning available wireless networks right now?
     
  2. Press the OK softkey. The device will scan for available Wi-Fi networks.
  3. Use the menu arrow keys to select Available Networks. Press the Enter softkey
  4. Select the desired Wi-Fi network and press the Connect softkey
  5. Enter the Wi-Fi network password and press the OK softkey

    Once connected, a green check mark will appear next to the selected Wi-Fi network 
 
 

Bluetooth

Connecting Bluetooth Dongle to CX400

  1. While the phone is in idle state, insert the Bluetooth USB Dongle into the USB port on the back of the phone.

    The LCD screen will prompt Bluetooth adapter is added, scanning Bluetooth devices right now? 
     
  2. By default, Bluetooth is Off. Press the Switch softkey to set to On.  
  3. Once Bluetooth is On, press the Save softkey.
  4. Press the Scan softkey to scan for available Bluetooth devices.
  5. Use the menu keys to highlight the desired Bluetooth device and press the Connect softkey.

    Once connected, a green check mark will be displayed next to the selected Bluetooth device
 
 

 

Escalation Information

Escalation Information: SD1

If you need additional assistance, contact Crexendo Support at 855-211-2255 or email us at support@crexendo.com

 

Change Log

Date Description
Jun 9, 2026 Article migrated and revamped