iOS 4.2 - Return to app after phone call

Question

I can successfully initiate a phone call within my app using the following:

[[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"tel://123456789"]]; 

However, is it possible to automatically return back to the app once the phone call has been terminated? It seems this was not possible under iPhone OS 3.0 but I am hoping it is now possible under iOS 4.2 with multitasking (I wasn't able to find any information on this question specific to iOS 4.2).

Thanks in advance for any assistance!

Answer 1

I know the question is very old, but currently you can do this (at least on iOS 5) by using telprompt://, like:

[[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"telprompt://123456789"]]; 

iPhone will show alert view confirmation and when call ends, your app shows again, instead of iPhone's call app.