Once your speakerphone does not work as usual, you can try to restore to default settings by following the steps below.
- 1). Ensure the speakerphone is in standby mode.
- 2). Press and hold both “V+” and “V-“ buttons for about 10 seconds until the LED indicator flash blue and red 5 times
- 3). Then turn off the speakerphone and turn on it again. The speakerphone is back to original setting now.