Argue between Shaw and VOIP SP

There are some conflict between Shaw Communications Inc. (I called it Shaw Cable) and VOIP service provider, like Vonage.
Today, I am noticed this article Vonage says Shaw breaching net neutrality at ITWorldCanada
As I mentioned before, the $10 services fee, which Shaw Cable charged for the voip phone QoS to make it faster, will let the VOIP SP anger. They said this is a VoIP tax.


The Voip SP think the Shaw Cable, as a ISP, should stay neutrality.
Because the QoS is difficult to test for the regular users, how can we argue the Shaw Cable.
The only concern is if Shaw Cable let the subscriber has faster transfering of VOIP.
Does it means the user without subscription will have the delay voice through VOIP on Shaw Cable?

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