On 6/19/06, Daniel Salama <[EMAIL PROTECTED]> wrote:
Is there anyone that could explain to me the phenomenon of Echo or at least point me where I can learn more?
This paper by Cisco is a great start: "Echo Analysis for Voice over IP" http://www.cisco.com/en/US/tech/tk652/tk701/technologies_white_paper09186a00800d6b68.shtml (it's the first result I get when I google for "echo in voip")
Why is this affecting the VoIP world so much and not the regular PSTN analog world?
That's a misconception -- echo is always there, just not perceivable. (I actually think that if absoluteley all echo were removed, conversations would sound strange, similar to being in an anechoic chamber.)
What does the PSTN industry have that they can handle such high volume of calls and there is "no" echo problem?
Expensive equipment with built-in echo-cancellers? Extensive planning and testing before deployment? Decades of experience dealing with such problems? _______________________________________________ --Bandwidth and Colocation provided by Easynews.com -- Asterisk-Users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
