Sprint is sending me a free Airave (+ free svc) because I added my mom on to my account and she lives in the middle of nowhere. This should fix her signal issues.

I have perfect signal at my house, but in the interest of saving minutes, I was looking at buying a second unit, and paying the $20 to get free calling when using the unit.

Has anyone tried this? I want to make sure I don't mess up the free Airave service I'm already getting by paying for a second one.

Also, does anyone know if the employee discount covers the Airave service and free calling plan?