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.