PE> I have another phone line which I could experiment
PE> with at a later date when all other possibilities
PE> have been exhausted, if that would make a difference.

BL> It'd come through the same exchange,

RS> Nope, most exchanges actually have two completely separate technologys,
RS> often some modern digital, and some rather more antique crossbar.

I'm not sure what your point is here.  I would have expected that
if both my phone numbers started with "436" that they would be
going through the same technology at the exchange.  Bob probably
didn't know that my phone numbers don't both start "436".  
BFN.  Paul.
@EOT:

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