Ok, so this isn't technically a jailbreak, but if you are jailbroken and were waiting for VZW wifi calling, the ipcc is finally out on Apple's site. You can download it and manually update your carrier setting and enable wifi calling.
And to make it easier for those who dont feel like searching.
Verizon latest carrier settings with wifi calling:
AT&T latest carrier settings with wifi calling:
You need to use iTunes.Good to know I'm not the only one then...hopefully some one has an idea.