hi guys, I'm a new user so I don't know if DTMF were working with previous versions of 3cx phone client but they don't work with my version, it seems that the remote systems don't recognize properly the DTMF sent by 3cx phone client. for example a few minutes ago I tried to enter a system that wanted me to input my credit card number but there was no way to succeed even if I tried several times. is this a known issue? are some of you experiencing the same trouble? thanks and regards.