"We wanted to have this offer as a sovereign AI notetaker, which would make us unique in the market in Europe. We could be one of the very few that offer this," said Marvin Gravert, a lead engineer at Noota, a Paris-based AI assistant that captures and automates the entire communication flow for its users.
Online meetings, in-person conversations, and phone calls are recorded, transcribed, and routed back into ATS, CRM, and email systems. The company serves users across Europe and around the world.
For Noota, telephony is one of three core intake channels. When a user makes a call, Noota needs to capture that audio at high quality, route it through transcription, and deliver structured notes back into the tools they already use. The telephony layer has to be reliable and compliant with European data requirements.
The Sovereignty Blocker
Noota's previous telephony provider was Twilio. The setup worked technically, but two problems compounded as the company scaled.
The first was data sovereignty. Enterprise customers, especially in France, increasingly required that data be stored and processed in Europe. GDPR and internal legal requirements made this more than a preference. For many buyers, it became a procurement blocker.
"It's a real concern that the data stays here in Europe," Gravert says. "They need this for internal legal processes. And looking at what's going on in America, many of our clients are getting a bit more wary. They want the data really stored here and not easily available in the US."
Sales deals stalled at the legal review stage because call audio was processed through US infrastructure.
"Beforehand, the blocker was that the processing was partly happening in the US. So we couldn't sign these customers," Gravert explains. "Now we could with Telnyx. This was really a key unblocker."
The second problem was vendor limitations. Twilio did not give Noota the same carrier-owned setup in the markets the company focused on. When call quality issues arose, support tickets bounced between resellers. The team spent developer time troubleshooting problems that should have been handled by the provider.
Moving to Carrier-Owned Infrastructure
Noota moved its core telephony layer to Telnyx so calls could be captured, routed, and processed on infrastructure built for European data requirements. The team uses Telnyx Phone Numbers and Voice API for call intake, with SIP Trunking supporting reliable voice connectivity across markets. Telnyx also supports Noota’s messaging channels through SMS and WhatsApp, giving the team a more unified communications stack.
The decision came down to three priorities: data sovereignty, carrier-owned infrastructure, and direct technical support.
Telnyx is an actual telephone carrier in many countries. Calls originate on Telnyx-owned infrastructure, not through a reseller chain. For Noota, that meant better quality and more actionable support when issues came up.
Data stays in Europe. This was the sovereignty guarantee Noota needed to unblock enterprise deals. Once the switch was made, the sales team could confidently answer the question every European enterprise buyer was asking: is our data stored and processed in Europe?
"Coming to Telnyx basically cut off the other half, which was quite nice to see at the end of the month," Gravert says.
Support quality was another major factor. From the first meeting, Noota had a shared Slack channel with Telnyx CSM, sales, and engineering teams. When Noota needed React Native support, the Telnyx engineering team provided early access and technical guidance. When legal questions came up, Noota was in a direct meeting with the Telnyx legal team within days.
"We got the impression that Telnyx was listening and engaging with our feedback," Gravert says.
The React Native SDK was not yet available when Noota onboarded, but it was a hard requirement for their mobile app. The Telnyx engineering team brought them in early, shared technical insights, and gave them early access so they could ship as soon as the feature launched.
From Support Burden to Growth Enabler
The migration produced three measurable changes.
Enterprise deals that were previously blocked by data sovereignty concerns started closing. Noota could offer a sovereign AI notetaker, one of very few in the European market, because the telephony layer ran on Telnyx's European infrastructure.
"We unlocked a lot of customers through that," Gravert says.
Voice quality improved. Users reported fewer issues with call clarity and connectivity, particularly in areas with weak signal.
"We previously had some issues raised there. But with Telnyx, it's definitely decreased," Gravert notes.
Less developer time was spent debugging telephony issues, freeing the engineering team to focus on product.
"We experienced less churn because we had a more stable service, better support, and better voice quality," Gravert says.
Building AI Voice Agents for Recruiter Screening
Noota is now expanding into AI voice agents. The company is active in the recruiting space, where the first interaction with a candidate is typically a phone screening call. Recruiters ask the same screening questions to hundreds of candidates.
"For the initial call, it's often a screening call. You have a lot of candidates, and you need to individually call them and ask them the same question over and over again," Gravert explains. "Here you can scale much better as a recruiting company when you can use agents to do this initial screening for you."
Noota plans to run these screening agents on Telnyx's Inference API, keeping the full pipeline on European infrastructure.
"This is also where Telnyx is a strong suit, strong support on AI agents," Gravert says.
The recruiting use case is a natural extension of Noota's communication platform. The company already captures online meetings and in-person conversations. Adding AI-driven phone screening completes the picture: every communication channel, from video to voice to messaging, captured and automated on a single infrastructure.
