unfortunately, a signal extender/booster is your only option. Do you get a signal outside of your house? Like in your yard? If so, then I don't actually think the problem is on their end. The problem would be with the construction of the home, or other factors (something else intefering with the cellular signal). If you don't get a signal in your yard, then your just in a dead zone. Either way, an extender is probably your only option (short of changing carriers). If you do buy one, make sure you check out the return policy. I've seen people have great success using them, and others not so much. If you get one, use it a lot prior to when you'd have to return it. Make calls, leave the house while on calls, make sure it will hand off the signal fine, etc, etc, etc.