TS1702 facetime on my iphone works but not on my ipad

Question

Facetime on my iPhone 4S works but not on my iPad (3rd or 4th Gen)

Answer 1

From the iPad User Guide:
To use FaceTime, you need an Apple ID and a Wi-Fi connection to the Internet. When you open
FaceTime, you may be prompted to sign in using your Apple ID, or to create a new account.
Make a FaceTime call: Tap Contacts, choose a name, then tap the phone number or email address the person uses for FaceTime.
You can also make a FaceTime call from the Contacts app.
Rotate iPad to use FaceTime in either landscape or portrait orientation. To avoid unwanted orientation changes, lock iPad in portrait orientation. See Portrait and landscape orientation on page 20.