[VoiceOps] SS7 Landscape

Mary Lou Carey marylou at backuptelecom.com
Thu Oct 12 13:48:37 EDT 2023 

If you already have SS7 services via Sigtran then going into a Frontier 
area would just be a matter of adding another SS7 for that tandem.

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

On 2023-10-12 11:42 AM, Mike Hammett wrote:
> *nods* We take SIGTRAN over IPSec over the public Internet, then
> convert to SS7 over DS1s in some old Ciscos.
> 
> -----
> Mike Hammett
> Intelligent Computing Solutions
> http://www.ics-il.com
> 
> Midwest Internet Exchange
> http://www.midwest-ix.com
> 
> -------------------------
> 
> From: "Nick Olsen" <nick at 141networks.com>
> To: "Mike Hammett" <voiceops at ics-il.net>
> Cc: "Mary Lou Carey" <marylou at backuptelecom.com>, "voiceops"
> <voiceops at voiceops.org>
> Sent: Wednesday, October 11, 2023 6:04:03 PM
> Subject: Re: [VoiceOps] SS7 Landscape
> 
> We use them at $DAYJOB. We've had no issues with syniverse themselves
> in the recent years while I've been at the company. But plenty of
> issues with the transport providers to reach them. Luckily never both
> at the same time. Including a number of instances of flapping. Note,
> these are A-Links over TDM, not SIGTRAN at this time.
> 
> On Wed, Oct 11, 2023 at 4:22 PM Mike Hammett via VoiceOps
> <voiceops at voiceops.org> wrote:
> 
>> Anyone in here using Syniverse for these services and can speak to
>> their reliability?
>> 
>> -----
>> Mike Hammett
>> Intelligent Computing Solutions
>> http://www.ics-il.com
>> 
>> Midwest Internet Exchange
>> http://www.midwest-ix.com
>> 
>> -------------------------
>> 
>> From: "Mary Lou Carey" <marylou at backuptelecom.com>
>> To: "Mike Hammett" <voiceops at ics-il.net>
>> Cc: "voiceops" <voiceops at voiceops.org>
>> Sent: Tuesday, January 25, 2022 11:59:14 AM
>> Subject: Re: [VoiceOps] SS7 Landscape
>> 
>> There are pros and cons to everything. It sounds like in your case
>> you
>> may just want to keep your ISUP trunks and SS7 links, but maybe look
>> at
>> another provider for SS7. Syniverse is also an option but I'm not
>> sure
>> if their service has gone downhill like TNS' apparently has.
>> 
>> MARY LOU CAREY
>> BackUP Telecom Consulting
>> Office: 615-791-9969
>> Cell: 615-796-1111
>> 
>> On 2022-01-25 10:38 AM, Mike Hammett wrote:
>>> Right, but as I said earlier, I'm already in the same building as
>> the
>>> tandem, so I'm just adding points of failure for moving an
>> existing
>>> operation somewhere else.
>>> 
>>> -----
>>> Mike Hammett
>>> Intelligent Computing Solutions
>>> http://www.ics-il.com
>>> 
>>> Midwest Internet Exchange
>>> http://www.midwest-ix.com
>>> 
>>> -------------------------
>>> 
>>> From: "Mary Lou Carey" <marylou at backuptelecom.com>
>>> To: "Mike Hammett" <voiceops at ics-il.net>
>>> Cc: "Paul Timmins" <paul at timmins.net>, "voiceops"
>>> <voiceops at voiceops.org>
>>> Sent: Monday, January 24, 2022 10:42:22 PM
>>> 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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>> 
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