I have been reassigned from my normal duties to figure out the asterisk echo problems we have been experiencing. We currently use a TE110P card (I think.) I know that the problem is the worst when calling from our office to a residential analog line or a analog PBX. Occasionally the problem will appear when calling anther digital PBX. The Asterisk Guru who just left my company mentioned that there is a Sangoma card that can help with the echo and he gave me the name of David Mandelstam. So David, if you are listening, I would appreciate your thoughts or advice. If anyone else has some great ideas, they would be appreciated too. Thanks, Andy Goss -- H. Andy Goss Network Engineer Network Advocates Inc. Main: 502.412.1050 DID: 502.992.5933 Mobile: 502.387.8216 agoss@ntad.com
We are using sangoma quad card with 4 E1 hooked, no echo problems. Best Regards Matt ----- Original Message ----- From: "Andy Goss" <agoss@networkadvocates.com> To: "Asterisk Users Mailing List - Non-Commercial Discussion" <asterisk-users@lists.digium.com> Sent: Friday, October 07, 2005 2:45 PM Subject: [Asterisk-Users] hardware echo cancellation. sangoma?> I have been reassigned from my normal duties to figure out the asterisk > echo problems we have been experiencing. We currently use a TE110P card > (I think.) I know that the problem is the worst when calling from our > office to a residential analog line or a analog PBX. Occasionally the > problem will appear when calling anther digital PBX. > > The Asterisk Guru who just left my company mentioned that there is a > Sangoma card that can help with the echo and he gave me the name of > David Mandelstam. So David, if you are listening, I would appreciate > your thoughts or advice. If anyone else has some great ideas, they > would be appreciated too. > > Thanks, > Andy Goss > > -- > H. Andy Goss > Network Engineer > Network Advocates Inc. > Main: 502.412.1050 > DID: 502.992.5933 > Mobile: 502.387.8216 > agoss@ntad.com > > > _______________________________________________ > --Bandwidth and Colocation sponsored by Easynews.com -- > > Asterisk-Users mailing list > Asterisk-Users@lists.digium.com > http://lists.digium.com/mailman/listinfo/asterisk-users > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users > >
Sangoma did announce a quad T1/E1 card with hardware echo-cancellation a couple months ago. I believe they will start shipping it in the next few weeks. There should be more info on their website including contact information: http://www.sangoma.com MATT--- On 10/7/05, Matt <mattl@xgforce.com> wrote:> > We are using sangoma quad card with 4 E1 hooked, no echo problems. > > Best Regards > > Matt > ----- Original Message ----- > From: "Andy Goss" <agoss@networkadvocates.com> > To: "Asterisk Users Mailing List - Non-Commercial Discussion" > <asterisk-users@lists.digium.com> > Sent: Friday, October 07, 2005 2:45 PM > Subject: [Asterisk-Users] hardware echo cancellation. sangoma? > > > > I have been reassigned from my normal duties to figure out the asterisk > > echo problems we have been experiencing. We currently use a TE110P card > > (I think.) I know that the problem is the worst when calling from our > > office to a residential analog line or a analog PBX. Occasionally the > > problem will appear when calling anther digital PBX. > > > > The Asterisk Guru who just left my company mentioned that there is a > > Sangoma card that can help with the echo and he gave me the name of > > David Mandelstam. So David, if you are listening, I would appreciate > > your thoughts or advice. If anyone else has some great ideas, they > > would be appreciated too. > > > > Thanks, > > Andy Goss > > > > -- > > H. Andy Goss > > Network Engineer > > Network Advocates Inc. > > Main: 502.412.1050 > > DID: 502.992.5933 > > Mobile: 502.387.8216 > > agoss@ntad.com > > > > > > _______________________________________________ > > --Bandwidth and Colocation sponsored by Easynews.com<http://Easynews.com>-- > > > > Asterisk-Users mailing list > > Asterisk-Users@lists.digium.com > > http://lists.digium.com/mailman/listinfo/asterisk-users > > To UNSUBSCRIBE or update options visit: > > http://lists.digium.com/mailman/listinfo/asterisk-users > > > > > > _______________________________________________ > --Bandwidth and Colocation sponsored by Easynews.com <http://Easynews.com>-- > > Asterisk-Users mailing list > Asterisk-Users@lists.digium.com > http://lists.digium.com/mailman/listinfo/asterisk-users > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users >-------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20051007/a9b8b5bd/attachment.htm
Andy - The Sangoma echo can has a longer MS duration of tail (buffer/compensation) than the Digium. Cory Andrews Senior Partner +++++++++++ VOIPSupply.com 454 Sonwil Drive Buffalo, NY 14225 +++++++++++ voice - 716.630.1555 X22 email - Cory@VOIPSupply.com fax - 716.630.1548 Andy Goss wrote:>I have been reassigned from my normal duties to figure out the asterisk >echo problems we have been experiencing. We currently use a TE110P card >(I think.) I know that the problem is the worst when calling from our >office to a residential analog line or a analog PBX. Occasionally the >problem will appear when calling anther digital PBX. > >The Asterisk Guru who just left my company mentioned that there is a >Sangoma card that can help with the echo and he gave me the name of >David Mandelstam. So David, if you are listening, I would appreciate >your thoughts or advice. If anyone else has some great ideas, they >would be appreciated too. > >Thanks, >Andy Goss > >-- >H. Andy Goss >Network Engineer >Network Advocates Inc. >Main: 502.412.1050 >DID: 502.992.5933 >Mobile: 502.387.8216 >agoss@ntad.com > > >_______________________________________________ >--Bandwidth and Colocation sponsored by Easynews.com -- > >Asterisk-Users mailing list >Asterisk-Users@lists.digium.com >http://lists.digium.com/mailman/listinfo/asterisk-users >To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users > > > >