I am also Experiencing this; "The problems we are having is audio drop out. Sometimes it comes back after 10-20 seconds, but even when it does, they can't hear us, and so we hang up the call. " Router OS 6.x - RB1200, 10/10Mbps SHDSL, Yealink T28p Handsets, Voip Provider = Faktortel Someti...