This was after calling tech support and doing a firmware update that was supposedly going to fix the problem

Explanation:After waiting 1 hour and 15 minutes the first time and 3 hours the second time, I finally got to tech support individuals that fixed my problems through in depth trouble shooting requiring my help.

Only time I need to call tech support is to port my old phone numbers to my Duo.

The new one is much better and the tech support at Nettalk helped me with the transfer of my current phone number to the new unit

If I can save 300 dollars per year I'll wait for tech support and get it done.

the device works well, but if you need tech support......good luck.

The second way for customer service is online-chat, in which you have to prepared to spend 2-3 hours for tech-support to do a SIMPLE 5-minutes technical check