Some time ago, I wrote a small app, which needs to create outbound phone calls on iOS. I used an URL to prepare the call like described here.
Since I never found an iOS method to perform the call - without a 'Would you like to call...' confirmation dialog - I finally dropped the project.
Recently I found 1-2-Contact, which does just this: If I press the phone icon, the phone call gets established without a confirmation dialog.
Does 1-2-Contact use a private frameworks? Or does a 'initiate phone call' method exist?