I have used an Iphone 5 for some months ago. But I cannot find the way to hang up automatically. So I suggest to the Apple that in IOS7, you should ad that function. For example, after talking 8 or 10 ... Minutes, the phone can hang up automatically. Because, there are many services provider promost 10 minutes free.
This site contains user submitted content, comments and opinions and is for informational purposes only.
Apple disclaims any and all liability for the acts, omissions and conduct of any third parties in connection with or related to your use of the site.