We are considering VoIP at one of our locations and the debate over VoIP is call quality. We are considering Comcast and figure that we may experience issues with call quality using their Business package with VoIP. Is there a way to have QoS and guarantee call quality on a cable service using VoIP? Do we need to have T1 in order to have the best call quality? Or if calls are important, should we just stick with the good ol fashioned PSTN/POTS network.
Your thoughts on this subject would be appreciated