What's worse really is not that you have to look at ILEC tandems out of area - they don't perform any route filtering, if the originating caller is calling out of area, it gets sent to their PIC/LPIC LD carrier. So what you really need is every IXC in the country to make sure they have a route to you either directly, through whatever tandem homing arrangements you have, or via another IXC (really common especially in rural areas to see a Level 3/Global Crossing hand off to Qwest/AT&T/Verizon for the final termination.). -Paul On 07/15/2014 10:52 AM, Adam Vocks wrote:
So, at the very least, I need to start looking at each of the ILEC's tandems in a specific LATA?
Adam
-----Original Message----- From: VoiceOps [mailto:voiceops-bounces at voiceops.org] On Behalf Of Alex Balashov Sent: Tuesday, July 15, 2014 9:48 AM To: voiceops at voiceops.org Subject: Re: [VoiceOps] New Exchange 217/777
On 07/15/2014 10:44 AM, Adam Vocks wrote:
:-)
Take Kidd's call from Verizon in Colorado. If there isn't our exchange in their local switch, do they forward the call on to another switch in hopes that it will know where to send it? Similar to a default gateway in IP world? It would get kicked up to an ILEC tandem inside that LATA. There is really no default gateway beyond that; at that point, you've already exited into what the IP world would call "default route-free" or "Tier 1" routing space.
-- Alex Balashov - Principal Evariste Systems LLC Tel: +1-678-954-0670 Web: http://www.evaristesys.com/, http://www.alexbalashov.com/
Please be kind to the English language:
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