QOS and time warner business class So I am supporting a UC560 and a couple of UC540s at two other sites. We have 10 girls at one site, 3 girls at the second site, and 5 girls at the third site. I would say there is at most 5 calls at a time at each site but more like 2 at a time. The sites are all connected over vpn and voice and data are separated into two seperate vlans. This is on 10x2 time warner business class. I have setup traffic shaping and the sg300 switch has qos on basic mode. We have horrendous call quality issues on internal calls with extensions daily and also sometimes on transferred calls. Voip tests suggest consistency of service is bad. Is fiber really my only recourse? 