On Thu, 9 Oct 1997, Joseph Stein wrote: > Correct, and don't forget about A, B, C, D (flash override, flash, priority > and <I forget>) -- four more valid DTMF sequences... Yes, all modems seem to be able to dial them, but they're pretty useless on my isdn pbx. It doesn't even seem to detect them. What happens if you dial them on a "regular" exchange? Kai .