Hi Matthew, No problem, it works, problem was coming from my provider. Regards, Olivier Matthew Fredrickson a ?crit : > olivier taylor wrote: >> Since yesterday, we experience echo problems. >> Not sure that's SS7 side but I'd like to know how to know if Echo >> Canceller is activated or not. > > It's possible that there is a code patch that I neglected to activate > the echo canceller on. One way to check is to do an "dahdi show > channel x" where x is the DAHDI channel number that has echo. It will > tell you if the echocanceller is on or off. > > Matthew Fredrickson > Digium, Inc. >