[VoiceOps] Call Quality

[Calvin Ellison]

I most often see this happen to avoid complaints about calls terminating to
cloud IP addresses or IP addresses outside the USA.



Calvin Ellison

Systems Architect

calvin.ellison at voxox.com

+1 (213) 285-0555

<http://voxox.com>

<https://www.facebook.com/VOXOX/> <https://www.instagram.com/voxoxofficial/>
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On Wed, Jun 16, 2021 at 5:38 AM Mike Hammett <voiceops at ics-il.net> wrote:

> "Then there's the popularity of anchoring media to mask downstream
> providers"
>
> I configure all of my sessions to not re-invite, but I do so because most
> of the VoIP providers only run mediocre IP networks. I build my IP networks
> to ensure good performance to both my providers and my customers. I can't
> ensure that anyone else has built their network the same.
>
> Others do so to mask which carriers they use? That seems awfully immature.
> On inbound, it's a simple LRN lookup. On outbound, okay, that is a lot
> harder to figure out. It still doesn't make any sense.
>
>
>
> -----
> Mike Hammett
> Intelligent Computing Solutions
> http://www.ics-il.com
>
>
>
> Midwest Internet Exchange
> http://www.midwest-ix.com
>
>
>
> ------------------------------
> *From: *"Calvin Ellison" <calvin.ellison at voxox.com>
> *To: *"Mike Hammett" <voiceops at ics-il.net>
> *Cc: *"VoiceOps" <voiceops at voiceops.org>
> *Sent: *Tuesday, June 15, 2021 5:28:15 PM
> *Subject: *Re: [VoiceOps] Call Quality
>
> 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
>
> <http://voxox.com>
>
> <https://www.facebook.com/VOXOX/>
> <https://www.instagram.com/voxoxofficial/>
> <https://www.linkedin.com/company/3573541/admin/>
> <https://twitter.com/Voxox>
>
> The information contained herein is confidential and privileged
> information or work product intended only for the individual or entity to
> whom it is addressed. Any unauthorized use, distribution, or copying of
> this communication is strictly prohibited. If you have received this
> communication in error, please notify me immediately.
>
>
> 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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