Forum:Turn plAyer

So my friend says that he can summon a monster and call priority on his turn with a call of the haunted and make me miss the timing on solemn warning. I find this ridiculous since my spell speed is higher than his and is actually chainable to his summon. He keeps on bringing up the turn priority stuff. I tell him you have to ask me if I have something for the summon if I don't he can call priority. Could someone please set him straight. I would like more than one editor since he won't agree with just one judge.