A day after Vonage filed a complaint with the CRTC over Shaw's $10 "VoIP Tax", which ensures QoS for voice services that compete with Shaw's cable telephony service, Shaw has fired back with guns ablazing. Calling Vonage's claims "wrong and misleading", CEO Jim Shaw said the company's QoS fee enhances voice packets within the network. This is a value-added service, he said, because the amount of available bandwidth can vary, and since voice packets are treated the same as regular data, voice packets can be dropped during peak times. Shaw president Peter Bissonnette snapped that Vonage's complaint "has more to do with their initial public offering and the fact they have so few customers in Canada rather than any real concerns about consumers". One question is how Shaw is determining competitive voice packets - likely using technology from Ellacoya - and whether it's "shaping" other kinds of traffic on its network. Rogers, for example, throttles back BitTorrent traffic, although it's loathe to talk about it.