[VoiceOps] SS7 Landscape

[Dan Mostert]

I believe an important consideration in setting your network up this way is to weigh the overall spend once you factor in the price of incoming minutes.  Our traditional TDM paths to the tandem get me inbound without a per minute cost, whereas working with a big IP carrier typically incurs per minute inbound costs.  

I feel your pain though... TNS has not been on top of SS7 issues for quite a while now.  We take hits or lose A-links pretty regularly and they have yet to take that seriously.

Dan

-----Original Message-----
From: VoiceOps <voiceops-bounces at voiceops.org> On Behalf Of Mary Lou Carey
Sent: Monday, January 24, 2022 11:42 PM
To: Mike Hammett <voiceops at ics-il.net>
Cc: voiceops <voiceops at voiceops.org>
Subject: Re: [VoiceOps] SS7 Landscape

When you use a PSTN connection provider you route your traffic to them via SIP and they handle all the SS7 so you can eliminate your direct LIS trunks with the LEC and your SS7 Links.

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

On 2022-01-23 05:33 AM, Mike Hammett wrote:
> Well right, but wouldn't I still need all of the same stuff (perhaps a 
> few less trunks to specific switches, only now I have fewer minutes to 
> spread the costs over?
> 
> -----
> Mike Hammett
> Intelligent Computing Solutions
> http://www.ics-il.com
> 
> Midwest Internet Exchange
> http://www.midwest-ix.com
> 
> -------------------------
> 
> From: "Paul Timmins" <paul at timmins.net>
> To: "Mike Hammett" <voiceops at ics-il.net>
> Cc: "voiceops" <voiceops at voiceops.org>
> Sent: Sunday, January 23, 2022 12:01:01 AM
> Subject: Re: [VoiceOps] SS7 Landscape
> 
> Even without IPES you can switch your feature group D to voip through 
> these aggregators and get rid of basically everything that isn't the 
> local LEC's legacy network.
> 
>> On Jan 22, 2022, at 7:03 PM, Mike Hammett <voiceops at ics-il.net>
>> wrote:
>> 
>> Sure, but then I just transfer the problem to someone else, until the 
>> traditional PSTN goes away or modernizes. I am working on IPES for 
>> expansion markets, though.
>> 
>> Also, for my home LATA, I'm needing to be in the same building as the 
>> primary tandem, so it's kind of a selling point for large customers 
>> in that area that I would have fewer opportunities for failures. I 
>> don't have to go to Chicago and back to get to the operator in the 
>> next row of racks over. Though, I suppose my SS7 diversity and 
>> availability is the weakness, not the actual call path.
>> 
>> -----
>> Mike Hammett
>> Intelligent Computing Solutions
>> http://www.ics-il.com [1]
>> 
>> Midwest Internet Exchange
>> http://www.midwest-ix.com [2]
>> 
>> -------------------------
>> 
>> From: "Paul Timmins" <paul at timmins.net>
>> To: "Mike Hammett" <voiceops at ics-il.net>
>> Cc: "voiceops" <voiceops at voiceops.org>
>> Sent: Saturday, January 22, 2022 1:46:46 PM
>> Subject: Re: [VoiceOps] SS7 Landscape
>> 
>> Reduce your reliance on it more and more. Switch to IP tandems
>> (Inteliquent/Peerless/etc) and ip interconnect. The people who make 
>> and support SS7 equipment are in a dying market, the brain drain on 
>> it is immense as people retire, and the longer you rely on it, the 
>> worse it's gonna get.
>> 
>> TNS is a big dog in the space. But that's not saying much anymore.
>> 
>>> On Jan 22, 2022, at 10:00 AM, Mike Hammett <voiceops at ics-il.net>
>>> wrote:
>>> 
>>> We currently get our SS7 via TNS. I (maybe incorrectly) understand 
>>> them to be a big dog in that space.
>>> 
>>> I've had two major problems with them in six months.
>>> 
>>> What are my alternatives? Are they less pleasant?
>>> 
>>> -----
>>> Mike Hammett
>>> Intelligent Computing Solutions
>>> http://www.ics-il.com [1]
>>> 
>>> Midwest Internet Exchange
>>> http://www.midwest-ix.com [2]
>>> 
>>> _______________________________________________
>>> VoiceOps mailing list
>>> VoiceOps at voiceops.org
>>> https://puck.nether.net/mailman/listinfo/voiceops
> 
> 
> 
> Links:
> ------
> [1] http://www.ics-il.com/
> [2] http://www.midwest-ix.com/
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