[error message](http://i.stack.imgur.com/xqYtw.jpg)

the error msg says:
Call requires permission which may be rejected by user: code should explicitly check to see if permission is available (with `checkPermission`) or explicitly handle a potential `SecurityException` less... (Ctrl+F1) 
This inspection looks at Android API calls and ensures that the correct type of resource is passed to an int-parameter expecting resources of a given type; it checks that APIs which expect an RGB color integer are passed actual colors rather than color resources; it checks that APIs which require a certain permission have the permission declared in the manifest; it checks that parameters expected to fall within a given range actually do; it checks that results of certain method calls are looked at by the caller, and so on.

code:
 Intent callIntent = new Intent(Intent.ACTION\_CALL);
 callIntent.setData(Uri.parse("tel:" + phone));
 startActivity(callIntent);
 image: