[VoiceOps] Multiple Tandems Per LATA

[Mary Lou Carey]

That makes it almost impossible because very few companies offer SS7 
transport anymore.

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

On 2021-06-15 03:47 PM, Mike Hammett wrote:
> *nods* In my area, different companies operate the two tandems, so
> then I need a third party to get there. That makes it fun.  :-)
> 
> -----
> 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, June 15, 2021 11:04:28 AM
> Subject: Re: [VoiceOps] Multiple Tandems Per LATA
> 
> It depends on who the ILEC is and whether you're interconnected via
> your
> own SS7  trunks or not. In BellSouth territory you can order a
> multi-tandem super group to cover all the tandems in the LATA. You
> just
> pay a per-MOU charge to have them deliver the traffic to the other
> tandems. Its not worth it if you have to send a lot of traffic though.
> 
> In the Verizon and other AT&T areas they make you order trunks to
> every
> tandem so you don't have a choice. In the old CenturyLink areas you
> could send traffic through your Access Tandem group as long as you had
> 
> SPOP in your ICA.
> 
> Your other option is to "lease your PSTN connection" through a third
> party provider like Inteliquent, Peerless, or Wide Voice that have SS7
> 
> trunks connected to every tandem in that LATA. It eliminates your need
> 
> for SS7 links but you do pay a per MOU for every call.
> 
> MARY LOU CAREY
> BackUP Telecom Consulting
> Office: 615-791-9969
> Cell: 615-796-1111
> 
> On 2021-06-10 04:28 PM, Mike Hammett wrote:
>> When your service area is taken care of by one tandem in the LATA,
> do
>> you connect to the other tandems in your LATA?
>> 
>> Currently I just send anything that's not on my single tandem (or my
>> direct connections) to my interLATA termination. How common is that?
>> It's pricey to build out to the other tandem.
>> 
>> -----
>> Mike Hammett
>> Intelligent Computing Solutions
>> http://www.ics-il.com
>> 
>> Midwest Internet Exchange
>> http://www.midwest-ix.com
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