slow pitch/chattering

[smalltown]

I was advised that the catcher in 12 and under slowpitch softball is not allowed to use the word swing or any word that may cause the batter to swing. I have always heard the infielders chatter and use the word swing, what is the difference isn't the catcher an infielder? I would appreciate a rule that applys. I was also told that the catcher enticing the batter to swing is unsportsman like.