Re: [asterisk-users] Echo on Sangoma A400 and background noise
On Wed, Sep 15, 2010 at 6:10 PM, Al lists asteris...@gmail.com wrote: I'm a long time user of Digium carts and stupid me i wanted to give Sangoma a try. We got Sangoma A400 with 6 FXO ports. Asterisk version: 1.4.35 Zaptel version: 1.4.11 Wanpipe version: 3.5.11 we tried to use fxtune but looks like it wont work with Sangoma card, ( please correct me if i'm wrong) Echo is really bad and also we have background noise on all lines. We tried both mg2 and oslec echo canceler. was wondering if you have any experiense with that because Sangoma tech support is not helpfull, just look at their response: Hello, I am sorry you've had this bad experience and I apologize on behalf of Sangoma if we gave you the impression of not caring about your technical issue. To rephrase what tech support meant. Our HWEC is known to provide better results, but in no way that means that we will not look at your issue with the card that does not have HWEC. A senior tech support engineer will be contacting you soon today to follow up on your issue appropriately. Regards, Moises Silva Senior Software Engineer Sangoma Technologies Inc. | NEW 100 Renfrew Drive, Suite 100, Markham ON L3R 9R6 Canada t. 1 905 474 1990 x128 | e. m...@sangoma.com -- _ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
[asterisk-users] Echo on Sangoma A400 and background noise
I'm a long time user of Digium carts and stupid me i wanted to give Sangoma a try. We got Sangoma A400 with 6 FXO ports. Asterisk version: 1.4.35 Zaptel version: 1.4.11 Wanpipe version: 3.5.11 we tried to use fxtune but looks like it wont work with Sangoma card, ( please correct me if i'm wrong) Echo is really bad and also we have background noise on all lines. We tried both mg2 and oslec echo canceler. was wondering if you have any experiense with that because Sangoma tech support is not helpfull, just look at their response: As you mentioned you have tried Oslec algorithms for echo cancellation.Which is a good way to solve echo cancellation issues. If that is not woking for you you may want to upgrade to hardware echo cancellation..with cards which have echo cancellers. Hope this helps. -Sri -- _ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] Echo on Sangoma A400 and background noise
- Al lists asteris...@gmail.com wrote: I'm a long time user of Digium carts and stupid me i wanted to give Sangoma a try. We got Sangoma A400 with 6 FXO ports. Asterisk version: 1.4.35 Zaptel version: 1.4.11 Wanpipe version: 3.5.11 we tried to use fxtune but looks like it wont work with Sangoma card, ( please correct me if i'm wrong) Echo is really bad and also we have background noise on all lines. We tried both mg2 and oslec echo canceler. was wondering if you have any experiense with that because Sangoma tech support is not helpfull, just look at their response: As you mentioned you have tried Oslec algorithms for echo cancellation.Which is a good way to solve echo cancellation issues. If that is not woking for you you may want to upgrade to hardware echo cancellation..with cards which have echo cancellers. I've had the exact opposite experience you've had. Digium tech support was less than stellar whereas Sangoma has always been top-notch. Also, their cards with HWEC 'just work' with absolutely no tuning required. --Tim -- _ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
Re: [asterisk-users] Echo on Sangoma A400 and background noise
On Sep 15, 2010, at 6:10 PM, Al lists wrote: we tried to use fxtune but looks like it wont work with Sangoma card, ( please correct me if i'm wrong) Echo is really bad and also we have background noise on all lines. We tried both mg2 and oslec echo canceler. I've only used Sangoma with hardware echo cancelation, but I did find I had to manually tune my cards. In my case using a test tone number was of no help, rather I just listened in on calls in progress and used ztmonitor to see where the levels were and adjusted things until I had a good level and the sound quality was acceptable. Until I did the manual tuning I had serious issues of static and background noise on several lines, but not all. I don't blame this on the Sangoma card, but rather on the line quality as I run Sangomas in other locations and have never had to do any tuning there, they have just worked. -chris www.mythtech.net -- _ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
