[VoiceOps] Call Quality

[Calvin Ellison]

VoIP termination still has the same 20th-century PSTN problems with
low-cost/quality carriers worming their way into wholesale LCRs. Then
there's the popularity of anchoring media to mask downstream providers, and
the SIP/RTP trapezoid becomes a hairball of jitter, latency, and possible
dead air from packet TTL hitting zero.

If your clients want you to do something about the robocalls they are
getting, there are many caller reputation services out there who can help.
TransNexus/ClearIP is fairly turnkey, or you can get data directly from
people like YouMail, Hiya, and First Orion to do your own analytics.

Is RingCentral really paying the IP transit to duplicate their media
streams just in case of some problem, or is it more likely they have
multiple peers and use standard tricks like BGP and path monitoring to drop
routes as needed?



Calvin Ellison

Systems Architect

calvin.ellison at voxox.com

+1 (213) 285-0555

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On Mon, Jun 14, 2021 at 9:16 AM Mike Hammett <voiceops at ics-il.net> wrote:

> I should add that my initial intent was the voice ecosystem, aside from
> the end-users. For those, usually it's one of the things we all already
> know.
>
> Why would carrier A have "good quality", while carrier B didn't?
>
>
> I had a conversation with a customer about quality being more important
> than price. A lot of things come to mind right away (such as diversity,
> latency, jitter, packet loss, etc.), but I'm looking for what I don't know.
>
>
>
> orrrr
>
>
> Are there just that many poorly ran companies where the low-hanging fruit
> I'm brushing aside is where almost all of the problems occur?
>
>
>
> -----
> 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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