Hello Everyone, I am sure I am just failing to search for the right strings as this has to be seen by others. I have FXS/FXO with no sip. Everything is POTS. I have echo cancellation working, but I get an "echo" of DTMF digits pressed when going from internal to external or vice versa (I am not seeing it on internal only). My guess is FreeSWITCH is detecting the DTMF, not blocking the already created fast enough, and then regenerating the DTMF, so the outside IVR or what not sees the digits twice or more. Is there some option I am missing that will fix this? Thank you, Trever