🚀 go-pugleaf

I have a NeXT ISDN Extender connected to my system at home.  I don't
have an ISDN line, but I have started playing with the POTS stuff.

>        How many and which plugs does it have on the NeXT side?
	Just the DSP port.

>        How many and which plugs does it have on the line (wall) side?
	One 8 pin connector for ISDN., one 6 pin for POTS.

        It was no power line (the power comes from the DSP port) and it
	has no lights or switches (not even an on/off switch).

>        Can ISDN and POTS be concurrently accessed?
        I don't think so.  The NeXT PhoneKit seems to require the
	application to pick one or the other.  But I don't know if
	this is a limitation of the hardware or the software.  My guess
	is that it's a limitation of the hardware.  Anyone at Hayes
	care to comment?

>        How high is the system load when transferring stuff over ISDN/POTS
	I haven't really tested this.  The only software that comes with
	the NeXT that works with the POTS line is the Message Ceter demo
	app which turns the NeXT into a simple answering machine.   But
	the system at least doesn't lock up while it's recording a message.
        
>        How fast is the POTS modem stuff?
        It doesn't exist yet.  I think NeXT is waiting for some third party
	company to implement this.  If we're lucky, they are already working
	on it and it will be out soon.  I hope the NeXT/DSP has enough power
	to do Fax and V.32bis processing.  I'd love to be able to throw out
	my Neuron and free up a serial port.

>        Is Modem / Fax / Answering possible with ISDN/POTS?
	There is no Modem or Fax support with ISDN or POTS yet.  You can
	easily write an apps to do 64K data transfers over an ISDN line
	provided you have an ISDN line and someone to call - that you
	can connect to.  I don't think it currently works anywhere
	except in the US.  But I'm not sure about this.

>        Is the DSP available when the ISDN Extender is hooked up
>                / running / transferring data
	I assume it's not available when the ISDN Extender is in
	use - even when you are waiting for an incomming call - but
	I'm not sure about this.  I'll do some testing.

>        Why did the guy from NeXT talk such strange stuff, or,
	My guess is that he was a salesman.  Many salemen have
	been geneticly altered is such a way that prevents them
	from saying "I don't know".  If you ask them a question
	they don't know the answer too, they just make up a
	good sounding answer.

Curt