On Mon, 24 Jun 1996, Mark Willey wrote:

> 
> Gary, one thing that just came to mind to me is that if you want to do
> "Internet Phone" type of stuff (any two-way communication, actually) then
> you should get what's called a "full duplex" card.  I think it requires 2x
> the # of interrupts and/or DMA channels, but will be worth it if that's in
> your plans.  The only one I can think of is the GUS, but the PAS may also
> work...  I know that SB does not have this - it is "half duplex".

Mark,
 This is a little misleading. When I first got IPhone, I was also under 
the impression that my SoundBlaster was half-duplex, and indeed it did 
operate that way until Creative released new drivers which enable the 
SB16 to operate in Full Duplex mode - it was a shock and it also worked fine.