HMMM, I guess we are just lucky because all of our calls are just like regular old phone calls. I've never had a problem with echo, stutter, jitter and whatever else.
Actually that third thing your referring to is because of my first point. They don't have a good enough infrastructure to suppport Voip.
Like I said I'm not saying these are the best but for the quality of calls and the up time I can recommend them. I'm just giving my honest opinion with my experiences and Cisco phones.
