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<font size="4">Hi Mike,<br>
<br>
I think you said that any ICMP packets would be noticed, do you
monitor the gateway connections as well?<br>
<br>
I've seen some devices that send out relatively small TTL values
and it can result in one way audio that is customer path specific.
As mentioned before SIP/TLS is not a true VPN and the audio UDP
will be hop counted across the Frontier network. They should send
back an ICMP message when they droop the packet.<br>
<br>
Just one more thing to check. Good luck.<br>
<br>
~Glen<br>
</font><br>
<div class="moz-cite-prefix">On 3/10/2024 9:28, Mike Hammett via
VoiceOps wrote:<br>
</div>
<blockquote type="cite"
cite="mid:1291233538.5860.1710088084435.JavaMail.mhammett@Thunderfuck2">
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<div
style="font-family: arial,helvetica,sans-serif; font-size: 10pt; color: #000000">I
haven't been able to attribute it to malice or ignorance yet,
just that it happens.<br>
<br>
<div><span name="x"></span><br>
<br>
-----<br>
Mike Hammett<br>
Intelligent Computing Solutions<br>
<a class="moz-txt-link-freetext" href="http://www.ics-il.com">http://www.ics-il.com</a><br>
<br>
<br>
<br>
Midwest Internet Exchange<br>
<a class="moz-txt-link-freetext" href="http://www.midwest-ix.com">http://www.midwest-ix.com</a><br>
<br>
<span name="x"></span><br>
</div>
<br>
<hr id="zwchr">
<div
style="color:#000;font-weight:normal;font-style:normal;text-decoration:none;font-family:Helvetica,Arial,sans-serif;font-size:12pt;"><b>From:
</b>"Alex Balashov via VoiceOps" <a class="moz-txt-link-rfc2396E" href="mailto:voiceops@voiceops.org"><voiceops@voiceops.org></a><br>
<b>To: </b>"VoiceOps" <a class="moz-txt-link-rfc2396E" href="mailto:voiceops@voiceops.org"><voiceops@voiceops.org></a><br>
<b>Sent: </b>Saturday, March 9, 2024 7:57:33 AM<br>
<b>Subject: </b>Re: [VoiceOps] One Way Audio - Frontier Comm
(Los Angeles area)<br>
<br>
No, it's true, consider me appropriately humbled. I
underappreciated the nuance of this issue. I thought we were
talking about something closer to the physicality of networks,
not packet inspection/filtering/etc.<br>
<br>
-- Alex<br>
<br>
> On 9 Mar 2024, at 08:11, James Cloos
<a class="moz-txt-link-rfc2396E" href="mailto:cloos@jhcloos.com"><cloos@jhcloos.com></a> wrote:<br>
> <br>
>>>>>> "AB" == Alex Balashov writes:<br>
> <br>
>>> I don't trust last mile networks to reliably
deliver SIP calls. I usually end up putting them into VPNs,
TLS, etc.<br>
> <br>
> AB> VPNs and TLS make last-mile networks more
reliable? :-) <br>
> <br>
> on the vpn side, wireguard (which runs over udp)
certainly does.<br>
> <br>
> I imagine ipsec sometimes can, too. but wg is easier.<br>
> <br>
> -JimC<br>
> -- <br>
> James Cloos <a class="moz-txt-link-rfc2396E" href="mailto:cloos@jhcloos.com"><cloos@jhcloos.com></a><br>
> OpenPGP:
<a class="moz-txt-link-freetext" href="https://jhcloos.com/0x997A9F17ED7DAEA6.asc">https://jhcloos.com/0x997A9F17ED7DAEA6.asc</a><br>
<br>
-- <br>
Alex Balashov<br>
Principal Consultant<br>
Evariste Systems LLC<br>
Web: <a class="moz-txt-link-freetext" href="https://evaristesys.com">https://evaristesys.com</a><br>
Tel: +1-706-510-6800<br>
<br>
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