Adding more precision: current net neutrality rules allow for some traffic prioritization if the network is at capacity. When the network is not at capacity, bi

Adding more precision: current net neutrality rules allow for some traffic prioritization if the network is at capacity. When the network is not at capacity, bits flow through at line speed but when a network hits it's capacity queues start to fill up. QoS doesn't do anything until queues start to fill up. So if I'm an ISP and I add QoS rules to prioritize VoIP over browsing traffic so that when the network gets congested VoIP calls don't drop (at the expense of web browsing speed) then that's ok - as long as I'm not artificially slowing things down and as long as I'm not prioritizing one company over another (Vonage over Skype, for example.) Removing net neutrality allows ISPs to make deals with VoIP providers (or anyone, really) so that their VoIP always works the best (or even so other VoIP services work poorly or not at all.)