If you're tired of dropping calls on your Verizon cellphone, or having little to no signal, you can improve the signal on your Verizon phone. The easiest way to improve your signal is to use Verizon's auto update service to update your roaming capabilities. In severe cases, it may be necessary to use an external cellphone antenna.
Dial *228 from your Verizon phone. Press "Send."
Choose option 2 from the audible menu, which is "Update Your Roaming Capabilities."
Let the update run all the way to the end. You will be notified when the update is complete.