Bytes AI builds AI phone assistants that take orders, handle bookings, and speak multiple languages for restaurants. A voice agent taking a dinner order over the phone has one point of failure that no model can repair after the fact: what it hears. If the audio arriving from the caller is thin or garbled, every step that follows, from transcription to intent to the order itself, is working from a bad copy.
Muthana Alhadrab ran into that constraint before Bytes AI existed. He was building a voice agent product on an earlier project at a time when speech-to-text models were far less forgiving than they are today, and the quality of the line decided whether an agent understood a caller or guessed. "It was actually really important for us to have really clear audio with a high bandwidth," he said. Everything downstream depended on it.
That project put him on Telnyx, and when he went on to become CTO of Bytes AI, the platform came with him.
The line had to be clean before anything else could work
A year and a half ago, Alhadrab recalled, Telnyx stood nearly alone in one specific capability. "Telnyx, back in the day, was the only one that did HD audio for SIP trunking, in general, for voice agents," he said. "And that was at the time when STTs were not generally as good."
Wideband audio over SIP Trunking meant his agents received more of the caller's voice to work with, which mattered most in exactly the environments Bytes serves. Restaurant phone lines are noisy by nature, and callers are rarely speaking into studio microphones. Starting from a higher-fidelity signal gave the rest of the stack a fair chance.
"We started using it for that purpose," he said. The reasons the company stayed turned out to be broader.
A basic API to build on
Bytes operates entirely in the restaurant industry, with products that span both voice and text. That meant standing up the plumbing for both, and Alhadrab described the process in plainer terms than most infrastructure migrations earn.
"It was very easy, to be honest," he said. "The API is very simple. It's very easy to programmatically start your own SIP trunks and buy your own numbers, and attach everything all together. It was just a basic API to go on top of."
Provisioning phone numbers and trunks in code, rather than through tickets and forms, fit a team that ships voice agents as software. The same account carries the company's text products, with the SMS API handling messages in both directions alongside the voice traffic.
What restaurants hear on the other end
The customers on the receiving end of a Bytes agent are restaurants and, through them, the diners who call. The feedback on quality has been consistent.
"It's been overall great," he said. "We haven't had any problems with network or bad audio coming into the voice agents."
He was also careful about where the remaining variability lives. Call quality, he noted, often comes down to the caller's own device. "It really depends on the mic of the end customer a lot of times," he said, "but whenever Telnyx got it right, it got it right." The variable, in other words, has been the handset on the other end rather than the network carrying the call.
Hooked on pricing, support, and reliability
What began as a decision about audio became a relationship measured in uptime. "Overall, we've just been hooked with the pricing, the support that we've been getting, and the reliability of the product," Alhadrab said. "We haven't seen any problems with it the past year, year and a half."
The sentiment extended beyond the CTO's own view. "Everything from the team is very positive about the product and about the service," he said. "So it was an easy choice."
For a company whose product is only as good as the call it rides on, that record of quiet reliability is the point. A restaurant does not notice the communications platform behind its phone assistant until something goes wrong, and Bytes has not had that conversation.
Built for voice agents over telephony
Alhadrab's recommendation to other companies comes back to the capability that brought him in, and to what has kept him since.
"Up until now, Telnyx is one of the few that are doing HD audio over SIP," he said. "So I think it's actually very useful for most voice agent applications that are going over telephony. The pricing is amazing, and the service is amazing."
Bytes AI built its restaurant voice agents on Telnyx. If you're shipping voice agents that need clear audio over telephony, the same SIP Trunking, phone numbers, and SMS API Bytes runs on are available to you.
