Besides, it
would be routing hell for the telcos - fine initially,
but as people move around you'd get the equivalent of what the
Internet routing tables would look like if every route were
advertised as a /32.
I know it's OT, but I see the local cable company
offering phone
service and I've got Skype on my machine. Doesn't the POTS model
seem more than a little dated?
POTS is a way of delivering the last mile for telephone service. It
has no bearing whatever on routing calls between switches. (There was
a time when trunks between switches were many copper pairs. That time
is long, long gone.)
VoIP - or more properly VoI, as VoIP has existed for a much longer time
than most people recognize - doesn't really affect this. If it
interacts with the PSTN (in particular, if it shares phone numbers with
the PSTN), then my remarks about call routing apply. And if not,
whatever it uses in place of PSTN-compatible numbers have the same
routing issues, so my remarks about call routing still apply.
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