Basic turkey hunting 101 , Two big concerns with calling to birds you think are closing in on your location
1) he may hang up thinking ,you ( the hen )will come to him -- and play it safe , staying in the same location and gobble even more , this can draw in interlopers like other hens , or other hunters
2) He will lock down your exact location and make like very difficult on you , a gobbler can stand off beyond shotgun range and give you the " stink eye" every twitch you make will be picked up by his eagle eyes and create a hangup situation
Spend enough time in the turkey woods and you will eventually discover how accurate a gobblers eyesight & hearing really is