[Freeswitch-users] freetdm rxgain txgain

[Nandy Dagondon]

Hi Karl,

Did you test the milliwatt tone using the FXS port? I asked because you
said it's not sending the ringing signal. Do you mean the phones did not
ring. The Digium cards require a separate power supply feed. Without it -
it can't generate the 100V ringing voltage. This is very obvious but let's
not discounting this possibility. :-)

/Nandy


On Thu, Aug 15, 2013 at 11:21 AM, Karl Schmidt <karl at xtronics.com> wrote:

> Looks like rxgain and txgain are not working - I was testing using the
> cool mW extension (thanks -
> whoever put that in)  and could not change the level - did some digging
> and dahdi_diag shows that
> the gains don't change.
>
> ; Aug 14 18:16:51 malaysia kernel: [350647.964612] dahdi: rxgain:
> ffffffffa02e7c70, txgain:
> ffffffffa02e7c70, gainalloc: 0
>
> ; Aug 14 18:20:33 malaysia kernel: [350869.980742] dahdi: rxgain:
> ffffffffa02e7c70, txgain:
> ffffffffa02e7c70, gainalloc: 0
>
> Even tried changes over a reboot.
>
>
> This card has absorbed a lot of time:
> (Digium, Inc. Wildcard AEX410 4-port analog card (PCI-Express)) [OT]:(and
> now I find that it fails
> to put out a real ring signal.  Apparently, whoever designed it did not
> know the difference between
> RMS and peak voltage... fails to ring 3 out of 4 modems I tested. Gump,
> hiss,groan).
>
> I can go in and modify the modem so it can detect the weak ring signal,
> but out of the box the audio
> levels on the card are way off ( they were also off in Asterisk ) and if I
> want to have this working
> well , I need to tweak those levels.
>
>
> BTW - I can use the 1 dBm test tone stream to monitor the transmitted
> level - is there a way to
> monitor a level coming back the other way?
>
>
>
>
>
>
> --------------------------------------------------------------------------------
> Karl Schmidt                                  EMail Karl at xtronics.com
> Transtronics, Inc.                              WEB
> http://secure.transtronics.com
> 3209 West 9th Street                             Ph (785) 841-3089
> Lawrence, KS 66049                              FAX (785) 841-0434
>
> The lawyer was about two bubbles off plumb.
>
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