[ntp:questions] Accuracy of audio tones via VOIP

Harlan Stenn stenn at ntp.org
Tue Jul 9 23:07:40 UTC 2013

John Hasler writes:
> Landline long-distance usually goes over packet-switched networks as
> well these days.  Unless your call to NIST is local you probably
> aren't hearing the tones they sent.

I have heard (and I haven't checked in to this) that a good number of
local calls are converted to digital pretty quickly, too.  It would be
interesting to find out and do a study from a variety of locations.


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