Dog whistles are too high for humans to hear, so of course you won’t hear anything when Geralt blows the whistles. Since wolves’ domesticated brethren - dogs - are often controlled with whistles, I thought that would be the most realistic wolf-management item.
You have a lot of control over your wolf, because I’ve given you three wolf-management whistles - one that dismisses your wolf, one that summons him, and one that creates another wolf, just in case you want two … or three. It takes the wolf a few seconds to join you when you go to a new area, so when you go to a new place, you should stand still for 3 – 4 seconds to allow your wolf to catch up with you. I made it at the request of Morgwin and E-ahmet, so credit for the idea goes to them.
This mod adds a white wolf to the game, one that follows Geralt around and fights for him.