הודעה מקורית מאת: jg נשלח: יום חמישי, 28 במאי 2015 12:18 אל: Asterisk Users Mailing List - Non-Commercial Discussion השב ל: Asterisk Users Mailing List - Non-Commercial Discussion נושא: Re: [asterisk-users] Seeking advice about ISDN BRI Cards
> Thank you all for valuable input, > > another question: when do I actually need the echo cancellation > (hardware / on board /on module ) ? > It depends on your environment. If there are still analog devices in addition to VoIP, I'd say always, but Asterisk has a rudimentary echo canceller already on board. The Telcos use echo cancellers themselves, but it cannot hurt to have a hardware canceller on your BRI card. Nowadays I see more problems with reverberation in connection with cheap speakerphones or simple mics and speakers on PCs, but that's a different story. jh -- _____________________________________________________________________ -- 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 -- _____________________________________________________________________ -- 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
