Switched in one night: ITNS runs its managed voice business on Telnyx

Oct 13, 2026•4 min read
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The outage had no resolution in sight. For a managed service provider that sells voice to its own customers, that was the end of the conversation. "We made the change overnight, rolling out new SIP connections for every PBX that we had deployed," said Julian Cracchiolo, VP of Technology at ITNS. "And since then, I do not recall ever having an outage or anything."

That overnight migration was five to six years ago. ITNS, a managed IT provider serving Texarkana, Shreveport, New Boston and Ashdown with 24/7 support, cloud, security and VoIP services, has been running its voice business on SIP trunking from Telnyx ever since. The company operates its own proprietary PBX and resells voice to its customers, which means every trunk it deploys carries someone else's business on it.

Two services became six

With its previous provider, ITNS used exactly two things. "These SIP connections are all we use with our previous provider," said Cracchiolo. "The SIP connection and the phone numbers, the DIDs themselves, are the only thing that we use with our other provider. Everything else has been new with Telnyx."

As the voice landscape evolved, so did the stack. Alongside trunking and phone numbers, ITNS brought its 10DLC brand and campaign registrations onto the platform, added programmable fax to its proprietary PBX, and started building against the API directly.

"Telnyx is always bringing in new features, new capabilities such as HD voice, SMS, all of those things that we use now day to day," said Cracchiolo. "And new things that are coming in, such as the spam filtering. That is now a capability that we are testing on certain numbers, to try to kill spam to our customers."

The 10DLC flow that runs itself

Carrier registration is the kind of work that buries an MSP in paperwork. Registrations would fail over details like a mismatched EIN, and chasing business information from customers created overhead on every campaign. So ITNS built the chase out of the process entirely.

Using the Telnyx API, the team built web forms that put registration in the customer's own hands. "We send those in an email to the customer. The customer fills out the form providing all their information, as far as their business information on the brand side of it," said Cracchiolo. "Once that's approved, we get the email from Telnyx. We send them another one saying, hey, time to fill out your campaign. They click on the link, fill it out, and it makes it really just a hands-off approach for us."

"It's a win-win for the customer and a win-win for us, because we don't have that overhead of trying to gather that information from the customer," he said. Alongside the messaging work, vFax now runs through the same PBX, keeping one more legacy service on modern rails.

The margins moved too

Reliability was the reason ITNS left its old provider. Price is part of why it stayed gone. "I do know our margins increased whenever we made that change," said Cracchiolo. "They couldn't touch what Telnyx is doing for us. Along with the reliability and the outage they had, we also gained greater margins because of a better price."

For a reseller, that math compounds. Every PBX deployment carries better unit economics, and the reliability means the support desk isn't spending those margins on outage calls.

Competing with the big carriers

ITNS sells voice into a market where its customers can always pick up the phone and call a national brand instead. Cracchiolo was direct about what that market rewards.

"For America, it's more about the affordability and the reliability. I would imagine that would be in any culture, any country around the world," he said. "Is it valuable based on what they're paying? And with Telnyx, we're able to give that to our customers and meet that demand, and give a product out there that competes with the RingCentrals, the NEC, all of those big carriers out there. We're able to meet that demand at a better price than what they're offering to Americans."

Six years after a migration that happened in a single night, the bar has stayed where Cracchiolo set it: phones that stay up, registrations that run themselves, and a provider his own customers never have a reason to think about.

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