Can't make outgoing calls on iPhone 4S

[Tricia]

I can't make outgoing calls on my iPhone 4S. It just says Call Ended as soon as I hit the call button. Anyone know how to fix this?

[Artemis]

1st thing I would suggest is resetting network settings. Settings - General - Reset - Reset Network Settings.

*Keep in mind this WILL delete all WiFi passwords. Make sure you know them before you proceed.