[Asterisk-Users] echo sidetone grandstream and tdm400p

[Marco Sajeva]

Hi Marty,
thank you for your suggestion, but... just done and nothing happens.
The perfect RX gain for me is 6.0; if I change the TX nothing really happens,
but if I move it to a value less than 0.0, less than that I cannot ear
anything... strange but true.
As I said, on internal calls everything works fine, without any echo. When I
make external calls (pstn with digium TDM400P) I ear an echo just at the begin
and at the end of any speech. If I say short words (sounds) then I hear a lot
of echos. Isn't it a sidetone effect?
Any other ideas?
Thanks again,
Marco

On Tue, 13 Jun 2006 12:02:20 -0700, Martin Joseph wrote
> On Jun 13, 2006, at 9:54 AM, Marco Sajeva wrote:
> 
> > First, thank you for your quick and kind answer.
> > I cannot change the TX gain on the Grandstream phones, or atleast I 
> > don't know
> > how to...
> > Can anybody help, please?
> Actually since you suggested the problem is only with your PSTN calls 
> (ie Zap channels), I think the answer is more likely in the zapata.conf?
> 
> I would experiment a bit more there with the gains...
> 
> Marty
> 
> > Thanks in advance,
> > Marco
> >
> >
> > On Tue, 13 Jun 2006 08:54:31 -0600, Colin Anderson wrote
> >> Turn down your microphone TX gains on the phones. On my TDM400 with 
> >> Vista
> >> 350's I had to crank the mic value way down. This is not specific to
> >> FXS phones, on my Snom 200's sidetone is so bad, that an appropriate
> >> setting for mic gain is '2' (out of 8)
> >>
> >> hth
> >>
> >> -----Original Message-----
> >> From: Marco Sajeva [mailto:m.sajeva at visioni.info]
> >> Sent: Tuesday, June 13, 2006 8:43 AM
> >> To: asterisk-users at lists.digium.com
> >> Subject: [Asterisk-Users] echo sidetone grandstream and tdm400p
> >>
> >> Hi all,
> >> thanks to the all of you. This list is very interesting also for a 
> >> newby
> >> like me.
> >> My problem: I just setup my first full working asterisk installation
> >> with this config:
> >> 1. n.1 GXP-2000
> >> 2. n.4 Budgetone 102
> >> 3. n.1 TDM400p (3 FXS, 1 FXO)
> >>
> >> Everything seems to work fine, but the sidetone... it's really 
> >> annoying!
> >> We can hear the sidetone only when we call to the outside (PSTN), it
> >> doesn't matter if we call a local, a mobile or a longdistance call.
> >> Only we hear the echo, not the called party. We do not ear any echo
> >> in internal call to each other extensions. I tryed every possible
> >> setting of the echotraining, of the rx and of the tx gain, but with
> >> no success. Any idea or help? Thank you in advance, Marco
> >>
> >> ______________________________________________
> >> Dott. Ing. Marco Sajeva
> >> Visioni - we network
> >> http://www.visioni.info
> >> _______________________________________________
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______________________________________________
Dott. Ing. Marco Sajeva
Visioni - we network
http://www.visioni.info