The trick is that any can be phoning from a company representing or in partnership with or on behalf of facebook or microsoft or mc donalds or any bigcompany , i used to do it when seeling advertising space we always said we were phoning on behalf of or doing a project with Ernst & Young. Truth is it was not true and we were flogging advertising space in books that were nothing to do with anyone important and there sole purpose was to appear like they were the real mccoy.