Does anyone have any real world experience linking multiple sites together over a VPN using the Comcast network? I know there is no QoS available over the public Internet but the hope is that by staying on the Comcast network and within the same metropolitan area the voice quality would be good enough. The proliferation of services like Vonage and Skype is causing a customer to be very interested in saving money by eliminating point to point circuits.
Thanks in advance. All replies rated.