[UIApplication sharedApplication] openURL

[[UIApplication sharedApplication] openURL:[NSURL URLWithString:@”mailto:”]];

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

08[[UIApplication sharedApplication] openURL:[NSURL URLWithString:@”tel://”]];

结束通话后自动返回到应用：

UIWebView*tempWebview =[[UIWebView alloc] init];

NSURL *telURL =[NSURL URLWithString:@”tel:phoneNumber”];

[

tempWebview

loadRequest:[NSURLRequest requestWithURL:telURL]];

[self.view addSubview:tempWebview];

可能不能通过审核

[[UIApplication sharedApplication] openURL:[NSURL URLWithString:@”telprompt://phoneNumber”]];

调用浏览器 safari

[[UIApplication sharedApplication] openURL:[NSURL URLWithString:@”http://www.google.com”]];