On Oct 29, 2008, at 5:55 PM, Paul Kyzivat wrote:
While I agree with what you say, this only works if the verification
will happen in a timely way. If you want white/black lists, then the
verification must happen even before the phone rings. Is it
reasonable to assume that in typical deployments the time for the
reverse lookup will be quick enough to give reasonable experience to
the caller? Or will he have already hung up? (I don't have a good
sense for the numbers here.)
a Really Bad Case would be 5 seconds PDD, with more typical being on
the order of 1 second.
What will the caller be hearing until this gets done? Perhaps 180
could be returned, which would at least give *some* feedback.
You might hear a chime for "Return Routability Check completed".
Of course, if we were fixing this "right", it would be yet-another
precondition.
--
Dean
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