I searched the forums and google but didn't see any mention of how to setup VoIP with LEDE. If I missed something please point me in the right direction. I was also unable to find any voip related packages.
I am doing VoIP without any related LEDE package but recommend sqm on the router.
have you checked openwrt wiki?
as you should know LEDE is an openwrt fork so most of the openwrt stuff should work on lede (unless is superseded)