
Eli Katz
President & CEO of National Retail Solutions (NRS), a subsidiary of IDT Corp, and Deputy Mayor of Teaneck, New Jersey.
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Jul 30, 2026
If You Don’t Trust the Number, You Don’t Have a Business
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Nick MillwardHOST
So what has fundamentally changed in how we understand and use phone number data now?

Eli KatzGUEST
The journey has been quite interesting if we look over the last kind of decade of the role with which information is being utilized by the communications, the CPaaS, the carriers industry.

Eli KatzGUEST
And very much where it's kind of started out was actually initiative triggered by the GSMA about 10 years ago, 15 years ago, around something called Pathfinder, which was to do with number lookup services.

Eli KatzGUEST
How can you find out information about this phone number in order to ensure you can actually route your message or you can route your voice call and and understand based upon number portability where this number is owned by what number so that's authoritative information it comes in country from the number portability databases you need to collate all of this on a global basis they can give one simple answer where's the information about this number and how do you successfully root on it so that was kind of kind of ground zero um and utilizes say billions of transactions on a monthly basis Over the last, I would say probably the last few years, that's now been evolving from what we call network information to subscriber information.

Eli KatzGUEST
So taking that away from simply being how can you identify correctly the network, but actually now what information can be provided at the subscriber level.
11 MINS LATER
National Retail Solutions Helps Independent Retailers Compete, Podcast
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Doug GreenHOST
Let's, you know, I think you've talked about something there that we often have not discussed in our chats, and that is the relationship of National Retail Solutions to IDT.

Eli KatzGUEST
Well, that's how you and I first met, because I was going with IDT to all the telecom, I'm Little by little, these telecom shows started converting into other types of shows, equipment, cases, you know, where you sell telecom cases, and other types of vendors, you know, MVNOs.

Eli KatzGUEST
So I recognized right away that, number one, The people that are selling telecom have deep rooted relationships with small businesses and any business.

Eli KatzGUEST
They already have the relationship and they should also not leave money on the table.

Eli KatzGUEST
And they should look at some of our products that we have for the small businesses or those businesses and say, Hey, I don't need big training.

Eli KatzGUEST
I don't need a lot of, you know, difficult, uh, classes or learning curves, et cetera.

Eli KatzGUEST
You can call National Retail Solutions at sellnrs.com. And I'm going to learn what products they have.
11 MINS LATER