Grace Digital C2T-XT2000 Cell2Tel Bluetooth Gateway Works With or Without Land Line Service: Keep your land line, use a VoIP service or cancel your land line service -- Cell2tel works in each situation Never Miss a Call: Make or take cellular calls from any phone in the house. Utilize Minutes: Fully utilize all your cell phone anytime, nights & weekends, and long distance minutes. End Dropped Calls: Leave your phone in your "hot spot" and make & take calls from any phone in your house. Up to 2 Phones: Connect 2 cell phones to your existing home phone system.