If you're not hearing any audio from your speakerphone, try these suggestions:

Bluetooth:

Check to see that you're playing audio from the correct source device.

If you have multiple Bluetooth devices connected (you can have up to two), try disconnecting the other and only playing from one device.

Move the audio source closer — it might be out of the range of your speakerphone.

Move other sources of wireless signal away — you could be experiencing interference.

Adjust the volume on both the audio source and your speakerphone.

Restart both your speakerphone and the source device.

Re-pair your device with your speakerphone (see 48251 for help).

Make sure you have your speakerphone selected as the default audio output device in both your operating system and softphone or media application.

USB:

Make sure you connect your speakerphone directly to a USB port on the computer and not to a USB hub or extension.

Try connecting to another USB port.

Make sure you have your speakerphone selected as the default audio output device in both your operating system and softphone or media application.

Restart both your speakerphone and your computer.