On Tue, 2006-04-18 at 20:03 -0700, leonimar cape wrote: > Hi > > Can someone give a suggestion on what I should do to > omit the echo. Here is may scenario > > --- h323 --- chan-ss7 --- > A---| |--------| |--------------| |----B > --- --- --- > Nextone Asterisk DMS > > The calling party can hear every words he/she say > after 1 to 2 seconds. But the called party can hear A > with no echo and the quality is clear. I have already > tried it in both digium (TE410P) and sangoma card > (AT104) and the results where the same. Is there any > way that I can cancel the echo? Any particular > settings that I have to change in the settings of the > asterisk? There is a nice Asterisk book you can buy online or download from asteriskdocs.org that should answer a lot of the basic questions. And there is a ton of info on www.voip-info.org. About the echo: have a look in zapata.conf. Also make sure you run the latest version of Asterisk, which is 1.2.7.1 at the moment. Imho the best way to fight echo is to either get a Sangoma/Digium card with hardware echo cancellation onboard or find Tellabs echo cans on eBay. Regards, Patrick
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