Free: Contests & Raffles.
Calling elk in and of itself is not what would make it illegal. What would make it illegal would be calling the elk with the intention of killing (either by yourself or someone else). The purpose is what matters. This also means whether one has a firearm or not is irrelevant.
Good question Legal definition of hunting: To Hunt: Any effort to kill, capture, injure, or harass a wild animal or wild bird.
Oh, and if it is illegal to call elk, then they may as well start ticketing all the waterfowl guides as well.
You guys are all over analyzing this, you will never get a ticket for calling for a partner.