Refining the BBS idea a bit, the problem with it is multiplexing. You'd need to run a modem bank (like Hayes or Multitech) into the PBX and use an n-port serial card in the host PC. The PBX I'm sure can be set for number fallover so if you keep dialing extension "101" and it's busy, it will roll to extension 102, etc. I used to have a 24-modem (2400 baud) Multitech modem bank from an old DEC installation but I got rid of it a long time ago. Just another piece of hardware I should have kept... Rich -----Original Message----- From: cctalk-bounces at classiccmp.org [mailto:cctalk-bounces at classiccmp.org] On Behalf Of Vintage Computer Festival Sent: Tuesday, August 02, 2005 11:38 AM To: General Discussion: On-Topic and Off-Topic Posts Subject: RE: Analog modem emulator? On Tue, 2 Aug 2005, Cini, Richard wrote: the from That's a great idea. Next VCF I could run a PBX through the exhibit area and then anyone exhibiting a live computer with a modem could hook it up to the PBX and we could have people dialing each other's exhibits. Not very practical but fun. An even better idea that I've been toying around with is to do a version of Core Wars. I'd come up with a basic specification and then it would be up to each exhibitor to write an implementation on their exhibited computer. The network would be serial based so just about anyone should be able to hookup. Whoever wins would get the Grand Prize ;) If this sounds like fun to you then please send me some feedback (directly preferred). If there's enough demand then I'll put it higher on my priority list amongst the 30,000 projects I already have going on. -- Sellam Ismail Vintage Computer Festival ---------------------------------------------------------------------------- -- International Man of Intrigue and Danger http://www.vintage.org [ Old computing resources for business || Buy/Sell/Trade Vintage Computers ] [ and academia at www.VintageTech.com || at http://marketplace.vintage.org ]