Well, no call is purely digital, the endpoints are still analog, as is the meatbag behind the handset. I can't imagine any way you can create echo in the digital portions. But a mismatch in impedance on an ATA or similar device would be a common old problem I've faced. On Mon, Jun 14, 2021 at 2:28 PM Mike Hammett <voiceops at ics-il.net> wrote:
One of the concerns I heard was echo. On a purely digital call, what would be the cause of echo?
----- Mike Hammett Intelligent Computing Solutions http://www.ics-il.com
Midwest Internet Exchange http://www.midwest-ix.com
------------------------------ *From: *"Mike Hammett" <voiceops at ics-il.net> *To: *"VoiceOps" <voiceops at voiceops.org> *Sent: *Sunday, June 13, 2021 1:11:30 PM *Subject: *[VoiceOps] Call Quality
I've heard a variety of complaints and concerns over the years about call quality. How are these quality issues introduced? As long as pipes and equipment aren't overloaded, where is a quality issue to come from?
Obviously, the closer you are to the handsets, the less opportunity there is for issues. What else is there to take into account?
----- Mike Hammett Intelligent Computing Solutions http://www.ics-il.com
Midwest Internet Exchange http://www.midwest-ix.com
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