1，撥打完電話回不到原來的應(yīng)用，會(huì)停留在通訊錄里，而且是不彈出提示直接撥打

NSMutableString *str=[[NSMutableStringalloc]initWithFormat:@"tel:%@",@"電話號(hào)碼"];

[[UIApplication sharedApplication] openURL:[NSURL URLWithString:str]];

2，打完電話后回到原來的程序，也會(huì)彈出提示

NSMutableString *str=[[NSMutableStringalloc]initWithFormat:@"tel:%@",@"電話號(hào)碼"];

UIWebView *callWebview = [[UIWebViewalloc]init];

[callWebviewloadRequest:[NSURLRequestrequestWithURL:[NSURLURLWithString:str]]];

[self.view addSubview:callWebview];

3,這種方法也會(huì)回去到原來的程序里（注意這里的telprompt），也會(huì)彈出提示

NSMutableString* str=[[NSMutableStringalloc]initWithFormat:@"telprompt://%@",@"電話號(hào)碼"];

[[UIApplicationsharedApplication]openURL:[NSURLURLWithString:str]]；