I'm running RedHat 9 with a TDM400 (2FXO, 2FXS). I have three way calling on my Bell lines, so b4 Asterisk, 3 way calls were established by establishing call 1, pressing the Flash key, dialing the other party, and finally pressing the Flash again to join everyone. The three way call only used one line. I'm able to do three way calling with Asterisk using the Flash key as well, but I just discovered that when I do it w/ Asterisk (press the Flash key, dial the other party, press Flash again) BOTH of my POTS lines (I only have 2) get used up. Any ideas on what's wrong w/ my configuration? Essentially, I need to be able to send the "Flash signal" to Bell in order to establish the three way call on a single FXO line, but I also need Asterisk to act on the "Flash signal" in order to transfer calls. Any ideas? Thanks, Hugh