All: A while back I tried to solve a false answer supervision issue I was intermittently receiving from underlying carriers. Back then I tried to find a solution using asterisk but had other pending things and put this off until now. Does anyone have any recommendations on how to possibly handle or get around FAS using FS. If I am not mistaken what would be needed is to have something that upon receiving the first 200 message, it simply ignores it, never propagating it and waits for the next 200. I can control this now a little bit better since it's only happening when the calls are sent to a couple of GrandStreams (FXO). My idea is to perhaps write a little application and add it to the DialPlan. The little script/app. would have the logic to ignore the first 200 and hopefully get around this issue. Is that something that is doable? Any other ideas on how to do this assuming is even possible to do it? Thanks in advance, Alfredo