ios拨打电话

// 1.结束拨打后返回到应用内 NSMutableString * str1=[[NSMutableString alloc] initWithFormat:@"tel:%@",@"135****2056"]; [[UIApplication sharedApplication] openURL:[NSURL URLWithString:str1]];

// 2.弹出提示框，结束拨打后返回到应用内
NSMutableString *str2 = [[NSMutableString alloc] initWithFormat:@"tel:%@",@"135****2056"];
UIWebView *callWebVew = [[UIWebView alloc] init];
[callWebVew loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:str2]]];
[self.view addSubview:callWebVew];