John Congdon
2003-Jun-13 07:30 UTC
[Asterisk-Users] Disabled echo canceller because of tone (rx)
Does anyone know what this means? It is in DMESG, and we have people complaining about echo. Disabled echo canceller because of tone (rx) John
Martin Pycko
2003-Jun-13 07:46 UTC
[Asterisk-Users] Disabled echo canceller because of tone (rx)
I think when you exceed the txgain or rxgain settings than the echo canceller might turn off. You can find if the pending call has echo canceller turned on when you do "zap show channel <channel_no>" on the CLI. Martin On Fri, 13 Jun 2003, John Congdon wrote:> Does anyone know what this means? It is in DMESG, and we have > people complaining about echo. > > Disabled echo canceller because of tone (rx) > > John > > _______________________________________________ > Asterisk-Users mailing list > Asterisk-Users@lists.digium.com > http://lists.digium.com/mailman/listinfo/asterisk-users >
Jared Smith
2003-Jun-13 07:52 UTC
[Asterisk-Users] Disabled echo canceller because of tone (rx)
On Fri, 2003-06-13 at 08:30, John Congdon wrote:> Does anyone know what this means? It is in DMESG, and we have > people complaining about echo. > > Disabled echo canceller because of tone (rx) > > JohnI've seen this too, and have wondered exactly what it means. Does it mean that the echo canceller has been disabled for that call? That channel? That entire span? The whole card? When does the echo canceller get turned back on, if ever? Jared Smith
Moshe Yudkowsky
2003-Jun-13 08:13 UTC
[Asterisk-Users] Disabled echo canceller because of tone (rx)
At 10:30 2003-06-13 -0400, John Congdon wrote:>Does anyone know what this means? It is in DMESG, and we have >people complaining about echo. > >Disabled echo canceller because of tone (rx)Guess: to prevent multiple echo cancellers from working on the same call, an echo canceller adds a tone -- was it 100 Hz? -- to the voice path. Other echo cancellers, after detecting the tone, will stop. -- Moshe Yudkowsky Disaggregate 2952 W Fargo Chicago, IL 60645 USA www.Disaggregate.com speech@pobox.com +1 773 764 8727
Martin Pycko
2003-Jun-13 08:38 UTC
[Asterisk-Users] Disabled echo canceller because of tone (rx)
Well I just checked the zaptel.c not guessed and it looks like this message pops in when the fax/modem transmit the echo canceller disable tones. regards Martin On Fri, 13 Jun 2003, Martin Pycko wrote:> I think when you exceed the txgain or rxgain settings than the echo > canceller might turn off. > > You can find if the pending call has echo canceller turned on when you do > "zap show channel <channel_no>" on the CLI. > > Martin > > On Fri, 13 Jun 2003, John Congdon wrote: > > > Does anyone know what this means? It is in DMESG, and we have > > people complaining about echo. > > > > Disabled echo canceller because of tone (rx) > > > > John > > > > _______________________________________________ > > Asterisk-Users mailing list > > Asterisk-Users@lists.digium.com > > http://lists.digium.com/mailman/listinfo/asterisk-users > > > >
Mark Spencer
2003-Jun-14 14:40 UTC
[Asterisk-Users] Disabled echo canceller because of tone (rx)
The "tone" being referenced here is the 2100Hz echo cancel disable tone. Mark On Fri, 13 Jun 2003, Martin Pycko wrote:> I think when you exceed the txgain or rxgain settings than the echo > canceller might turn off. > > You can find if the pending call has echo canceller turned on when you do > "zap show channel <channel_no>" on the CLI. > > Martin > > On Fri, 13 Jun 2003, John Congdon wrote: > > > Does anyone know what this means? It is in DMESG, and we have > > people complaining about echo. > > > > Disabled echo canceller because of tone (rx) > > > > John > > > > _______________________________________________ > > Asterisk-Users mailing list > > Asterisk-Users@lists.digium.com > > http://lists.digium.com/mailman/listinfo/asterisk-users > > > > _______________________________________________ > Asterisk-Users mailing list > Asterisk-Users@lists.digium.com > http://lists.digium.com/mailman/listinfo/asterisk-users >