Ranger Shout Question

I asked a similiar question on a different thread.
I think I may have not asked it correctly however.

If you use the shouts Call of Ferocity and Call of Haste, do the two speed factors combine making your pet attack at a 50% faster rate?

I'm trying to come up with a PvE pet based ranger build.

Thanks in advance,
Mind

Calls stack, but the effects don't.

You can have multiple calls on your pet, but if they both give the same effect, only one of them will apply.

So no, your pet will not be super speedy