Always perform a LNP query on the originating number to determine the 
originating company and start with them, realizing they may not provide the LD, 
doesn’t matter they have to work with you.

You say CenturyLink was removed from route by Inteliquent and it cleared 
T-Mobile so this wouldn’t seem to be a facilities issue but have you examined 
the TCIC’s the calls come in on from ATT, are they confined to a range?
There are a number of ways to get in touch with ATT but they will say they are 
passing what they receive.  The best be is to start with the originating 
company.

At this point who would you file a FCC complaint against?


Mark Timm
Switch Engineer
Aureon Technology
7760 Office Plaza Drive South
West Des Moines
, IA

50266
[email protected]
515-830-0478
www.aureon.com
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From: VoiceOps <[email protected]> On Behalf Of Brandon Svec
Sent: Tuesday, August 20, 2019 10:58 PM
To: Jamie Montgomery <[email protected]>
Cc: [email protected]
Subject: Re: [VoiceOps] Who do we call - 3rd plus party carrier issues 
affecting local customers

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It sounds like you have done more than half the troubleshooting already.

I would continue to work the AT&T escalation angle as it sounds they should be 
the ones in a position to identify the trouble route and resolve it.

Maybe through out the idea of a potential FCC complaint by someone in your 
organization it could help move things along.

Good luck

On Tue, Aug 20, 2019 at 7:45 PM Jamie Montgomery 
<[email protected]<mailto:[email protected]>> wrote:
Greetings..

Looking for the proper way to identify a third party carrier..

We have had a monthlong ongoing issue with external calls into our switch with 
terrible quality. It’s random, but it’s calls to ported numbers into one of our 
CLEC areas. When an affected call comes in, it is reported as static or delay. 
We have obtained an audio capture of a couple of these calls from the ingress 
point of our TDM network, and the audio is severely delayed and choppy as if it 
was delayed within an IP network. We’re assuming the call has been routed 
through an IP low-cost carrier somewhere. (Working with T-Mobile below, we 
found that their switches would route calls that originates and terminates 
locally in South Carolina through Washington state carriers.)

All of the calls with an issue come into us from a legacy ATT tandem, but not 
all of the calls from the ATT tandem are affected. We’ve been trying to get in 
touch with ATT for a month, and have recently spoken to some people with no 
resolution. We continue to call them daily. We worked with T-Mobile on issues 
with their wireless customers calling our CLEC customers experiencing this 
problem. The guys at T-Mobile were excellent to work with. (They reached out to 
their 3rd party carrier Inteloquent who had rerouted calls away from 
CenturyLink, which resolved calls from T-Mobile devices.) We’re getting dozens 
of trouble calls a day from several of our CLEC customers on calls originating 
from many other sources (Verizon, local ILEC  landlines, etc.). We’ve explained 
to our customer that the trouble is not ours, that we’re doing our best to 
track down the problem carrier, but we’re been notified by our customers that 
we’re going to lose them, regardless.

Our last idea is to file a complaint with the FCC, but that’s leaving issues 
unresolved. My questions to the community are:

  *   What’s the most effective way to zero in on the problem carrier  to 
troubleshoot the issue?
  *   What legal means do we have to empower somebody to support us in finding 
the issue?
  *   What would you do if your hands were tied like ours seem to be?
  *   (What other questions should I be asking the community that come to mind?)

My background is switching and some at work experience of the SS7 network. I’m 
of the opinion that I’m not the most qualified in our organization to engage 
the FCC or twist ATT’s arm to work with us.. but no one else beside the 
on-point technician is making any effort. Internal responsibilities aside: How 
do we make the extra effort to keep our customers?

I appreciate the time you took from your day reading this.


Jamie Montgomery | Comporium

Network Facilities Engineering | Voice Network Engineering Associate

www.comporium.com<http://www.comporium.com>

[email protected]<mailto:[email protected]>


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Brandon Svec
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teamonesolutions.com<http://teamonesolutions.com>
14729 Catalina St. San Leandro, CA 94577

.ılı.ılı. Cisco Meraki CMNA
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