[Asterisk-Users] echo sidetone grandstream and tdm400p

[Marco Sajeva]

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