The Aastra 480i is also known for having pretty high sidetone volumes which some may interpret as an echo.
These are the gain/sidetone settings I use on all my Aastra's (9112i, 9113i, 480i, and 57i) headset tx gain: -3 headset sidetone gain: -2 handset tx gain: -6 handset sidetone gain: -5 handsfree tx gain: 0 You can probably safely ignore the headset settings unless you are using headsets obviously... I've found those settings work fairly well with Plantronics headsets (have a few different models in use using those same settings). Don;t know anything about the SNOM's so I can help ya there. -- Matt http://www.mattgwatson.ca On 7/21/08, Noah Miller <[EMAIL PROTECTED]> wrote: > Hi Joseph - > >> I have Astra 480i's and Snom M3's. I am using a SIP provider so I do >> not have any peripheral cards. >> >> I am on voip-wiki now reading about the echo canceller tuning, thanks! > > For your particular case, you're probably not going to find much > useful info on the wiki about echo cancellation. The info there is > about reducing echo when there is an analog-to-digital conversion (in > other words, if you're connecting to PSTN lines somewhere). > > If you have echo on calls that go through your SIP provider, it is > possible that they are not doing a very good job with echo > cancellation. If the echo is exclusively on these calls, you'll > probably want to call them to discuss this. > > If you have echo on calls between your Astra and/or Snom handsets, you > may want check the gain settings on these devices. Reducing the gain > would probably lessen the effect of the echo. You may also want to > check if either of these phones is doing any AEC (acoustic echo > cancellation), and if there are any AEC parameters that are > adjustable. I don't have experience with either of these phones, so I > can't give you direct info on how to do this, but I'm sure that at > least Snom support can help you. > > > - Noah > > _______________________________________________ > -- Bandwidth and Colocation Provided by http://www.api-digital.com -- > > AstriCon 2008 - September 22 - 25 Phoenix, Arizona > Register Now: http://www.astricon.net > > asterisk-users mailing list > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users > _______________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- AstriCon 2008 - September 22 - 25 Phoenix, Arizona Register Now: http://www.astricon.net asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
