[VoiceOps] TF CPR dip?

[Nathan Anderson]

Jay,

Thanks; yes, I understand that & thought I made that clear later on in my post.

So to restate/rephrase:

1. How does direct (as opposed to call-forwarding-esque) TF origination work, exactly?  As far as I can tell, all such numbers are still comprised of CPRs in the SMS/800 database, and ultimately (after consulting the table to account for originating number/LATA, time-of-day, etc.) every TF routing decision still boils down to a pairing of CIC + some valid 10-digit NANP number.  Yes?  So, for "direct" routed TFs, is the 10-digit destination just set to be equal to the TF number itself?

2. How does one look up the CPR for a given TF number?  I have reason to believe that the particular TF numbers I'm interested in are not "direct-routed", but in any case, my questions about these numbers would be quickly answered if I could simply perform some kind of route look-up on the number(s).  *Must* you be a RespOrg and onboarded to the SOMOS portal to be able to do this?  There are all sorts of third-parties that provide LRN dip services...it's surprising to me that a similar market of services does not seem to exist for what I view as the analogue in the TF world.  I really don't even care for the whole CPR: all I really want to do is basically perform the same look-up that would be made during an actual call, and know what the singular routing decision would be for that call to that TF number at that particular time of day and given a particular originating exchange.

-- Nathan

-----Original Message-----
From: VoiceOps [mailto:voiceops-bounces at voiceops.org] On Behalf Of Jay Hennigan via VoiceOps
Sent: Wednesday, August 9, 2023 8:04 PM
To: voiceops at voiceops.org
Subject: Re: [VoiceOps] TF CPR dip?

On 8/9/23 19:54, Nathan Anderson via VoiceOps wrote:

> Is this even a thing?  Is it possible to do a look-up on a TF number and know ultimately what local number a call to that TF number is going to be sent to?

It may not go to a local number at all. It can terminate on an 
old-school toll trunk (PRI) or be delivered by SIP as the native 
toll-free number.

"Switched" TF is translated to a local number by the provider and 
delivered over the PSTN/VoIP on that local number. "Dedicated" TF is 
delivered directly to the customer natively as the TF number.

More complex schemes can be set up with routing based on originating 
NPA/NXX, time of day, etc. as well.

-- 
Jay Hennigan - jay at west.net
Network Engineering - CCIE #7880
503 897-8550 - WB6RDV

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