iOS Tutorial: make call from app programatically

Making call from iOS requires just two lines of code. These will make call without asking a user, and after the call has ended, the control will not come back to your app (see how to come back to app in further section)

Make a call initiated from app

- (void) dialNumber:(NSString*) number{
	number = [@"tel://" stringByAppendingString:number];
	[[UIApplication sharedApplication] openURL:[NSURL URLWithString:number]];
}

Notice, that the number string should contain digits only.

Come back to your app after call has ended

The prefix:

@"telprompt://"

used instead of prefix:

@"tel://"

in phone number URL will cause two things:

• user will be prompted if he wants to make a call
• after the call, the control will come back to your app

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