Re: ATT Voice Call Routing Issues

[John Alcock <john () alcock org>]

We are seeing problems from AT&T.  We believe it specifically from AT&T
mobile. About 15 to 20% of the calls are one-way audio.

John

On Wed, Nov 27, 2024 at 07:35 Mike Hammett <nanog () ics-il net> wrote:

> https://puck.nether.net/mailman/listinfo/voiceops
>
>
>
> -----
> Mike Hammett
> Intelligent Computing Solutions
> http://www.ics-il.com
>
> Midwest-IX
> http://www.midwest-ix.com
>
> ------------------------------
> *From: *"John Stitt" <jstitt () hop-electric com>
> *To: *"NANOG" <nanog () nanog org>
> *Sent: *Tuesday, November 26, 2024 6:57:02 PM
> *Subject: *ATT Voice Call Routing Issues
>
>
> Anyone on the ATT voice side of things able to reach out off list?
>
> We’re seeing inbound call issues from AT&T and firstnet phone numbers
> across multiple providers. Outbound calls have no issue.
>
> So far we’ve had no success with normal channels of support.
>
> The calls are dropping after five seconds, but they do initially make it
> through and you can have a few seconds of audio if you answer quick enough.
> If you don’t answer, you’re get a recorded message that says your call
> could not be completed as dialed and then gives an error code of “message
> six US01LV”
>
> Thanks
>
> John Stitt
> Sr. Network Engineer
> HES energynet
>
> Sent from my pocket CRAY-1