🚀 go-pugleaf

Hi.

I know I am not really in the right newsgroup area but I figured that 
all you Sun fans might be able to help me out.

I need a Cisco router with built-in terminal adapter. I need one which 
can run at 128k and preferably can run at 256k also. [This needs to run 
2B channels and possibly a D channel]. Also I would really like a 
solution that I can reuse when I increase my bandwidth up again. I am 
connecting to a PC based ethernet network at this end of the ISDN. It 
has been suggested to me to go with either the Cisco 4000 or the 4500. I 
also notice that Cisco has a new model, the 4700, available.

Now what I need to know is this:

-can I lease such equipment? or arrange a buyback lease type deal?

-firstly can I purchase second hand cisco stock anywhere in Australia? 
 (or does anyone know of someone wishing to offload such a unit?)

-secondly what is the difference between US and Australian ISDN units?

-thirdly if I have to buy new which one should I get? Any ideas?

-anyone know of a source of FAQ on Australian application cisco routers? 
 (or even isdn in general in australia) 

Thanks all.