[VoiceOps] TMobile Sending Calls to LRN not Called Number

[Mary Lou Carey]

I'm not an expert in how STIR/SHAKEN is implemented in the TDM world, 
but I've never heard of this happening until recently. I've heard 
anything sent over the SS7 network has issues with the token being 
dropped. Maybe the problem is bigger than just the token being 
dropped.....maybe what they are doing is causing the called number to be 
dropped as well! That's the only reason I can come up with as to why one 
would get the LRN but not the called number.

Just a thought,

MARY LOU CAREY
BackUP Telecom Consulting
Office: 615-791-9969
Cell: 615-796-1111

On 2021-07-01 10:15 AM, Mark Timm wrote:
> It’s not just T-Mobile, it’s Verizon, US Cell and Lumen
> originations.  I believe it is traffic that Inteliquent back hauls.
> 
> 		 [1]
> 
> 		Mark Timm​
> 
> 		Switch Engineer
> 
> 		Aureon
> 
> 7760 Office Plaza Drive South
> 
> West Des Moines
> 
> 		,
> 
> IA
> 
> 50266
> 
> 		Mark.Timm at aureon.com
> 
> 515‑830‑0478
> 
> 		 [2]
> 
> 		www.Aureon.com [2]
> 
> 		 [3]
> 
> 		 [4]
> 
> 		 [5]
> 
> 		 [6]
> 
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> From: VoiceOps <voiceops-bounces at voiceops.org> On Behalf Of Matthew
> Sutton
> Sent: Thursday, July 1, 2021 10:08 AM
> To: voiceops at voiceops.org
> Subject: [VoiceOps] TMobile Sending Calls to LRN not Called Number
> 
> Anyone else seeing calls from TMobile coming in with the LRN as the
> called number? The ISUP doesn't show the actual called number so we
> can't route the calls.
> 
> -Matthew
> 
> Links:
> ------
> [1] https://www.aureon.com/
> [2] http://www.aureon.com/
> [3] https://www.facebook.com/aureon
> [4] https://www.youtube.com/channel/UCv6xwRKJCouZM6FPQEJ6CMA
> [5] https://www.twitter.com/aureon
> [6] https://www.linkedin.com/company/aureon
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