Make and receive phone calls on iPad. You can make and receive calls on your iPad by relaying calls through your iPhone (iOS 9 or later required). To make calls this way, you must set up FaceTime and sign in with the same Apple ID on both of your devices. Despite being connected to the network, I am unable to make calls or receive calls on my iPhone 4. When I try to make a call, the phone immediately shows "call failed" even without any ringing. When others call my number, they report that my phone is 'disconnected.'