[[UIApplicationsharedApplication]openURL:[NSURLURLWithString:@"tel://10086"]];
[[UIApplicationsharedApplication]openURL:[NSURLURLWithString:@"tel:10086"]];
[[UIApplicationsharedApplication]openURL:[NSURLURLWithString:@"tel 10086"]];
[[UIApplicationsharedApplication]openURL:[NSURLURLWithString:@"tel:\\10086"]];
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