[VoiceOps] Optimizing VoIP orig routing to exploit Verizon VoIP TDM interconnections

[Hiers, David]

Nice!  This method does not presuppose knowledge other than IP address location, which can be readily (1) determined and (2) refreshed.


David


-----Original Message-----
From: VoiceOps [mailto:voiceops-bounces at voiceops.org] On Behalf Of Ryan Delgrosso
Sent: Wednesday, December 11, 2013 11:32
To: voiceops at voiceops.org
Subject: Re: [VoiceOps] Optimizing VoIP orig routing to exploit Verizon VoIP TDM interconnections

I have switches in both One Wil and in Boston but the motivation to do this was largely for bandwidth optimization so I didn't clog up my cross country circuits with RTP that didn't need to be there. The quality gain is there but i wouldn't consider it the selling point of undertaking a project like this since most people cant tell the difference between a call I hot-potatoed off the network locally vs one I back-hauled across the country, at least until the cross country link starts to saturate....

I showed a 63% decrease in network utilization when I switched to steering terminating calls by SDP C line. Again on the orig side its harder to control depending on how your customers expect to receive calls.

Here is a link to the paper.

http://www.transnexus.com/index.php/geo-intelligent-routing-improves-quality-of-service-and-network-efficiency 





On 12/11/2013 11:21 AM, Hiers, David wrote:
> I've tried to noodle up a plan for that kind of thing in the past... However, I can't convince myself that I know enough about the current/future carrier topology to raise the confidence level up to where it seems actionable.
>
> My biggest latency problems (by hundreds of milliseconds) have been algorithmic (transcoding, huge buffers, etc), not distance.
>
> Does anyone have a switch on either coast?  It'd be interesting to see if someone in NYI or OneWil has issues that seem weighted one way or the other.
>
>
> Thanks,
>
> David
>
>
> -----Original Message-----
> From: VoiceOps [mailto:voiceops-bounces at voiceops.org] On Behalf Of 
> Mark Lindsey
> Sent: Wednesday, December 11, 2013 10:54
> To: voiceops at voiceops.org
> Subject: [VoiceOps] Optimizing VoIP orig routing to exploit Verizon 
> VoIP TDM interconnections
>
> I'm trying to plan a US nationwide georedundant SIP interconnect with Verizon for origination and termination. I want to minimize delay between parties, and heuristically I'll pretend people tend to talk more to other people who are local.
>
> So it seems smart to get my "western" origination traffic to my Western SBC primarily, and my "eastern" traffic to my Eastern SBC.
>
> Does anyone have a good method for deciding which side of the country it makes sense to send traffic to?
>
> For example, when I port a Minneapolis number to Verizon, is it any better to have Verizon send it west, or east?
>
> Or does it make no difference at all?
>
> My current method is simply to use the Mississippi River. But I'll bet if I had full visibility into Verizon's network and their TDM local access tandem interconnects, the answer might be different.
>
>>>> mark at ecg.co +12293160013 http://ecg.co/lindsey
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