Oh my. It took some time but now it's done. I just wrote a small HOWTO that describes how you can recycle your old ISDN PBX as a cheap (it's already been paid, right?) multi-port analog adapter and reach all ports directly from the outside. http://voip-info.org/tiki-index.php?page=Asterisk+with+Ackermann+Euracom Happy hacking! --