Yes, that's the accuracy I need. The application is very sensitive to
propagation time. The equipment will ping the circuit when the call is set
up in order to measure round-trip delay. What I want to know is, can the
delay change during the call because of IP packet delays? If IP isn't used,
that's what I need to know.



"Andreas Wenzel" <awspambucket@gmx.de> wrote in message
news:fvtcnb$3di$01$2@news.t-online.com...
> Andreas Wenzel schrieb:
>> RFguy schrieb:
>>> [...]
>>> Admittedly, I never notice changes in voice delays on cellular calls,
>>> but I'm asking here about constant propagation times within 0.1 usec,
>>> much smaller than the human ear can detect.
>>
>> You really mean 0.1micro-seconds? In that case it does not matter what
>> technology is used. Move one inch towards the tower and your delay
>> changes by about a micro second.
>
> Opps, sorry, "slight" miscalculation. 0.1µs equals to about 100ft, not 1".
>
> Andreas
>