Re: cost of residential ISDN (fwd)

[wb8foz@netcom.com (David Lesher)]

  > Martin, this holds true in a network that has the potential for bottlenecks.
  > Unless contradicted by someone with direct technical knowledge, I contend
  > that current ISDN switches, from Nortel, AT&T or whoever, are non-blocking
  > switches.  This does not allow for blocking within the immediate switch.
  
  I strongly doubt ANY switch in regular use is 100% non-blocking.
  Ask David Lewis or Al Varney for specifics..
  
  > If you are speaking about interoffice trunking of ISDN calls, then
  > there *is* a potential for heavy users tying up the connections
  > between the central offices. In most large cities, there are
  > sufficient fiber optic connections between all CO's that this isn't
  > a problem.
  
  IMHO, interoffice trunkage is several magnitudes cheaper than it was,
  but it's still not unlimited.....
  
  
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