LE>> actually fiendishly difficult to calculate a set of 
LE>> filter coefficients that will detect all the different 
LE>> breeds of service tones in Australia.
AM> Do manufacturers actually make their service tone detection work across the 
AM> range of values specified in Austel TS 002?

Welllllllllllll... I couldn't speak for all manufacturers. I tried, and
failed, is all I know 8-) It's REALLY difficult. I got it to the stage
where it would work on all but ARE, but only in some areas (???!) For
example, it would work fine at 03-9528-2xxx and 03-9528-7xxx, but take it
out to 03-976something (9761-2xxx ? can't recall) and it failed dismally.

Most integrators (I won't call them manufacturers) get the firmware dump
from Rockwell, and use a utility called ConfigurACE to set up all that sort
of thing. There is no way to customize it to the degree that's really
necessary; the DPi-series datapumps have 3 independent tone detection
filters and it would be easiest if you program all 3 to recognize different
dialtones while you're dialing, then reprogram them all to listen for
different busy tones while you're waiting for the call to connect, etc.

-- Lewin A.R.W. Edwards [Team OS/2]  Tel 0419320415 * 0412809805 * 0414927056
@EOT:

--- MsgedSQ/2 3.35