[VoIP] Correct Way To Connect X100P To Step By Step Exchange?

Duncan Smith duncan.b.smith at gmail.com
Wed Aug 1 22:59:08 CDT 2007


On Wed, Aug 01, 2007 at 05:36:49AM -0700, ikjtel wrote:
> immediately upon receipt of any pulse (or even
> an inductuve transient, as PDW has found) it will go
> into a guarded state in which its audio ckts are cut
> out of the loop and not reconnected for approx.
> 150-250 msec.

My CO, a 5ESS, occasionally seems to do that.  Sometimes when I
pulse-dial after a call has been connected, the audio is cut off for a
moment.  When it comes back, I can hear a click, probably from the
far-end echo.

I tried it against a foreign office's milliwatt and silent
termination, but I couldn't hear it; thus it's most likely far-end
echo.

I then dialled my voicemail and said "four", dialed four, and
continued to say four at the same volume, stopping three times after I
heard the click.  You can hear it for yourself at
<http://students.washington.edu/f/host/four-pulses.wav>.  Apparently
the CO is interpreting the pulses as audio, adjusting my transmitted
volume to be reasonable.

I probably shouldn't have heard the click on my voicemail, though,
because there ought to be no echo as it is (presumably) fully digital.

-- 
Duncan Smith  --------\    http://students.washington.edu/f/    /---
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