Use FaceTime with the same Apple ID? I and my wife own three Apple devices. MacBook Pro, iPad 2 (only Wi-Fi) and iPhone 4S. All of these are registered with the same Apple ID and Gmail account. With FaceTime I can call to IPhone, but I cannot call from my iPhone. Probably because iPad or MacBook do not have a unique id. How can this be fixed so I can use FaceTime in any direction? I do not want more than one Apple ID as it makes trouble in App Store and iCloud.
You can add another email address for FaceTime in your iPad:



This will allow you to call your iPad uniquely with this id. 

Similarly, you can add another email address to your MacBook Pro's Facetime: