Klaus-Peter Junghanns
2003-May-15 11:00 UTC
[Asterisk-Users] Echo heard by person receiving call
hi derek, you might want to play with rxgain and txgain. it seems that you experience an echo that is caused by the mic of your phone picking up the audio from the speaker of your phone. try adjusting the rxgain. regards kapejod -- Klaus-Peter Junghanns CEO,CTO Junghanns.NET GmbH Breite Strasse 13 - 12167 Berlin - Germany fon: +49 30 79705392 fax: +49 30 79705391 iaxtel: 1-700-157-8753 email: kpj@junghanns.net http://www.junghanns.net/asterisk Am Don, 2003-05-15 um 20.54 schrieb Derek Beaumont:> I have tried both of those options, and they produce the exact same result > > --------------------------------------------------------------------------------------------------- > > In the Zaptel Make file try Mark Echo Canceler 3 or Mark Echo > Canceler 2 and Aggressive Suppression. > > > Jeremy McNamara > > Derek Beaumont wrote: > > >Problem: When calling a long distance number through iconnecthere, the > >phone making the call (attacked to my asterisk box) heard everything fine. > >However, the phone on the receiving end will hear an echo about 250 - 500ms > >after speaking. > > > >So far, I have tried the following to solve the problem: > >Recompiled Zaptel with all of the different echo cancellation algorithms > >Adjusted the echo cancellation level in zapata.conf (for each algorithm) > >Swore at my computer > > > >Is there anything I can do to fix this? > >Is this a problem caused by iconnecthere? > > > >My hardware: > >X100P > >TDM10B > > > >Thanks for reading my post > > > >_________________________________________________________________ > >Help STOP SPAM with the new MSN 8 and get 2 months FREE* > >http://join.msn.com/?page=features/junkmail > > > >_______________________________________________ > >Asterisk-Users mailing list > >Asterisk-Users@lists.digium.com > >http://lists.digium.com/mailman/listinfo/asterisk-users > > _________________________________________________________________ > The new MSN 8: smart spam protection and 2 months FREE* > http://join.msn.com/?page=features/junkmail > > _______________________________________________ > Asterisk-Users mailing list > Asterisk-Users@lists.digium.com > http://lists.digium.com/mailman/listinfo/asterisk-users
Problem: When calling a long distance number through iconnecthere, the phone making the call (attacked to my asterisk box) heard everything fine. However, the phone on the receiving end will hear an echo about 250 - 500ms after speaking. So far, I have tried the following to solve the problem: Recompiled Zaptel with all of the different echo cancellation algorithms Adjusted the echo cancellation level in zapata.conf (for each algorithm) Swore at my computer Is there anything I can do to fix this? Is this a problem caused by iconnecthere? My hardware: X100P TDM10B Thanks for reading my post _________________________________________________________________ Help STOP SPAM with the new MSN 8 and get 2 months FREE* http://join.msn.com/?page=features/junkmail
Jeremy McNamara
2003-May-15 11:47 UTC
[Asterisk-Users] Echo heard by person receiving call
In the Zaptel Make file try Mark Echo Canceler 3 or Mark Echo Canceler 2 and Aggressive Suppression. Jeremy McNamara Derek Beaumont wrote:> Problem: When calling a long distance number through iconnecthere, > the phone making the call (attacked to my asterisk box) heard > everything fine. However, the phone on the receiving end will hear an > echo about 250 - 500ms after speaking. > > So far, I have tried the following to solve the problem: > Recompiled Zaptel with all of the different echo cancellation algorithms > Adjusted the echo cancellation level in zapata.conf (for each algorithm) > Swore at my computer > > Is there anything I can do to fix this? > Is this a problem caused by iconnecthere? > > My hardware: > X100P > TDM10B > > Thanks for reading my post > > _________________________________________________________________ > Help STOP SPAM with the new MSN 8 and get 2 months FREE* > http://join.msn.com/?page=features/junkmail > > _______________________________________________ > Asterisk-Users mailing list > Asterisk-Users@lists.digium.com > http://lists.digium.com/mailman/listinfo/asterisk-users
I have tried both of those options, and they produce the exact same result --------------------------------------------------------------------------------------------------- In the Zaptel Make file try Mark Echo Canceler 3 or Mark Echo Canceler 2 and Aggressive Suppression. Jeremy McNamara Derek Beaumont wrote:>Problem: When calling a long distance number through iconnecthere, the >phone making the call (attacked to my asterisk box) heard everything fine. >However, the phone on the receiving end will hear an echo about 250 - 500ms >after speaking. > >So far, I have tried the following to solve the problem: >Recompiled Zaptel with all of the different echo cancellation algorithms >Adjusted the echo cancellation level in zapata.conf (for each algorithm) >Swore at my computer > >Is there anything I can do to fix this? >Is this a problem caused by iconnecthere? > >My hardware: >X100P >TDM10B > >Thanks for reading my post > >_________________________________________________________________ >Help STOP SPAM with the new MSN 8 and get 2 months FREE* >http://join.msn.com/?page=features/junkmail > >_______________________________________________ >Asterisk-Users mailing list >Asterisk-Users@lists.digium.com >http://lists.digium.com/mailman/listinfo/asterisk-users_________________________________________________________________ The new MSN 8: smart spam protection and 2 months FREE* http://join.msn.com/?page=features/junkmail
Please be sure you have "echocancelwhenbridged" and "echocancel" enabled in your zapata.conf before you define the channel. You can type "zap show channel 1" or "zap show channel 2" to see the state of the echo can. Mark On Thu, 15 May 2003, Derek Beaumont wrote:> Problem: When calling a long distance number through iconnecthere, the > phone making the call (attacked to my asterisk box) heard everything fine. > However, the phone on the receiving end will hear an echo about 250 - 500ms > after speaking. > > So far, I have tried the following to solve the problem: > Recompiled Zaptel with all of the different echo cancellation algorithms > Adjusted the echo cancellation level in zapata.conf (for each algorithm) > Swore at my computer > > Is there anything I can do to fix this? > Is this a problem caused by iconnecthere? > > My hardware: > X100P > TDM10B > > Thanks for reading my post > > _________________________________________________________________ > Help STOP SPAM with the new MSN 8 and get 2 months FREE* > http://join.msn.com/?page=features/junkmail > > _______________________________________________ > Asterisk-Users mailing list > Asterisk-Users@lists.digium.com > http://lists.digium.com/mailman/listinfo/asterisk-users >
Thanks Mark, I have been scratching my head for the last couple of days, wondering why I could not get echo can. to work, because page 51 of the draft manual says: echocancel: Disable or enable echo cancellation. In almost every configuration it is recommended that this be left on (or left unstated, as the default is always on.) I had thus not added the echocancel= in zapata.conf Once I did, mec3 is doing a great job. Regards, Richard Mark Spencer wrote:> Please be sure you have "echocancelwhenbridged" and "echocancel" enabled > in your zapata.conf before you define the channel. > > You can type "zap show channel 1" or "zap show channel 2" to see the state > of the echo can. > > Mark > > On Thu, 15 May 2003, Derek Beaumont wrote: > > >>Problem: When calling a long distance number through iconnecthere, the >>phone making the call (attacked to my asterisk box) heard everything fine. >>However, the phone on the receiving end will hear an echo about 250 - 500ms >>after speaking. >> >>So far, I have tried the following to solve the problem: >>Recompiled Zaptel with all of the different echo cancellation algorithms >>Adjusted the echo cancellation level in zapata.conf (for each algorithm) >>Swore at my computer >> >>Is there anything I can do to fix this? >>Is this a problem caused by iconnecthere? >> >>My hardware: >>X100P >>TDM10B