One thing I've noticed and just for further clarification.........

The Voipo ATA must be registered any time you want to generate, re-generate or otherwise disable the BYOD credentials in vPanel. As soon as you disconnect the ATA and it unregisters, the ability to do any of those changes becomes disabled. If you want to make any further changes to the BYOD credentials, you must temporarily hook up the ATA again and let it re-register.

After you've supplied your BYOD device with its credentials, it will work with or without the Voipo ATA hooked up.