Recently I have noticed major issues with dtmf on 3cx Phone. When doing some wireshark captures on one of the machines I noticed that 3CX phone is echoing the digits multiple times and this can be repeated on various machines. When testing with XLite on the same machine(s) this doesn't occur with repeated testing. Anyone got any ideas on what I can do to remedy this? None of my Hardphones exibit the same issue and as I said Xlite works fine, I have tested using G711U and GSM as well as with 2833 and inband dtmf.