I have a Google voice # that I have successfully shared between a Blackberry and Droid. Call the number and both phones ring and each phone can call the other using the Verizon cell number assigned. Worked great. Changed from a Blackberry to a Droid pro and now the other Droid can not call the Pro using the "real" cell phone number. It automatically goes to a recording asking for a pin. However, the Pro can call the other Droid. Mystifying and frustrating. None of the settings were changed. Any help would be greatly appreciated.