onetechy
When you have the issue try power cycling the HughesNet modem (and router, if you have one), as well.
1. Unplug the ATA (Voice unit).
2. Unplug the router (if you have one).
3. Unplug the HughesNet modem at the wall outlet or power pack, NOT at the back of the modem.
4. Check to make sure your cables are well connected.
5. Wait for at least 30 seconds after unplugging the HughesNet modem, then plug the modem back in.
6. Wait for about five minutes so that the HughesNet modem is fully back up and running, then plug in the router (if you have one).
7. Wait for the router to be fully back up and running (usually a minute or two), then plug in the ATA.
8. I don't have an ATA, so I don't know if it takes time to be fully powered up, but if it does, wait that time, then try your phone again.
I don't know for sure that this will help, but it may. I'll tag the reps, as well, so that they can reply and do what they need to do.
Liz
Amanda
Edit: I don't believe your cell phone is causing any of the issues, but the rep can tell you for sure.