I chose Telnyx for their voice infrastructure while building an AI-powered phone system. From a technical standpoint, the platform itself seems strong, which makes this experience even more... See more
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Telnyx is a global connectivity platform delivering carrier-grade communications and advanced Voice AI on a private, cloud-agnostic IP network. Its Voice, Voice AI, Messaging, Numbering, Video, Wireless, Fax, and Identity solutions are powered by intuitive RESTful APIs and its award-winning Mission Control Portal. From AI-driven virtual agents and automated call workflows to feature-rich contact centers and in-app communications, Telnyx tackles real-time interaction needs at every scale—with 24/7 in-house engineering support. As an internationally licensed carrier, Telnyx provides secure, high-fidelity connectivity while democratizing access to next-generation voice automation and global communications. Telnyx Voice AI gives businesses the power to deploy natural, responsive, and cost-efficient voice automation at global scale. Built on top of Telnyx’s private IP network, our Voice AI stack delivers ultra-low latency audio streaming, real-time speech recognition, dynamic conversational logic, and lifelike text-to-speech—without the fragility of public internet routing. Whether you’re replacing IVRs, building AI agents for sales and support, or routing calls with intelligent self-service, Telnyx provides the tooling, reliability, and global carrier footprint needed for production-grade voice automation. Direct cloud integrations, flexible APIs, and 24/7 engineering support make it easy to launch, optimize, and scale AI-driven voice experiences anywhere. Telnyx’s Voice API powers crystal-clear calling and advanced call control for modern applications. Developers get granular programmability—from SIP trunking and number management to intelligent call routing, recording, conferencing, and real-time media streaming. Because it all runs on Telnyx’s private IP network, customers benefit from enterprise-level quality, security, and uptime without carrier complexity. Whether you’re building a feature-rich contact center, enabling in-app calling, or standing up global voice infrastructure, the Voice API gives you low-latency connectivity, transparent pricing, and the operational stability needed for mission-critical voice workloads. Telnyx SIMs provide secure, multi-carrier, global wireless connectivity designed for IoT, mobile applications, and enterprise mobility. With a single Telnyx SIM, devices automatically connect to the best available network in 180+ countries, backed by intelligent steering and real-time monitoring through the Mission Control Portal. Developers can activate, manage, and scale fleets with straightforward APIs—no carrier lock-in, no hidden fees. From eSIM provisioning and private LTE/5G roaming to failover-ready IoT deployments, Telnyx wireless solutions deliver predictable performance, transparent costs, and the hands-on engineering support needed to keep critical devices online anywhere in the world. Telnyx provides instant access to a worldwide inventory of local, national, mobile, and toll-free phone numbers—backed by our own international carrier licenses and private IP backbone. Customers can search, purchase, and configure numbers in seconds through intuitive APIs or the Mission Control Portal, with transparent pricing and no long-term contracts. Every number comes with built-in features like call routing, CNAM, emergency services support (where available), and advanced compliance tooling to simplify global deployments. Whether you’re expanding into new markets, powering high-volume contact centers, or supporting localized customer experiences, Telnyx delivers reliable, regulatory-compliant numbering in 140+ countries with 24/7 engineering expertise. Founded in 2009 with offices in Chicago, Dublin, Amsterdam, Warsaw, and São Paulo, Telnyx delivers mission-critical services to customers including Cisco, Philips, the Red Cross, and more.
600 Congress Avenue 14th Floor, 78701, Austin, United States
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Shocking experience, correctly setup everything via their API, messages were sent and showed as delivered on their system.
Support team state delivered does not mean received, essentially every message regardless of content is blocked by the carrier.
Had to purchase two numbers and fund the account to find this out, and then to cancel they make you jump through various security hoops, despite being logged in and on their live chat speaking to them, they ask for security information that hasn't been set up or even exists, avoid this business as a platform it's the worst i've ever used

Reply from Telnyx
This company is associated with telephone marketing. As my number is listed on the do not call register I can only assume that they have not cross referenced this before trying to all me. An act that I'm sure they'll know is against the regulations they are governed by.
Report sent to OffCom also

Reply from Telnyx
whoever is using this company have been dialing from three different number between 11 am to 12 pm and say nothing. Dead silence. Except twice what sound like a computerize voice could not understand attempt to say words. I ask "STOP CALLING!!" I been reporting number to Do NOT CALL which does not affect the call continuing Numbers display 575-249-7049, 575-717-8355 575-249=7128. My location is Cincinnati, Ohio 513-574 exchange

Reply from Telnyx
Absolutely horrible business practices. I created an account with this company over 2 years ago but never used it because of their inferior dashboard and system. I receive CONSTANT e-mails from them which are unwanted. Their system wouldn't allow me to login to my account to delete it and STOP the e-mails so I contacted their support. After a long phone conversation, the account was supposedly CANCELLED and they confirmed I wouldn't receive any more e-mails. About 30 minutes later, I received another e-mail. I will now have to file a complaint with both the Attorney General and FTC for their violation of the CAN-SPAM act.

Reply from Telnyx
Keven is my hero! I spent a couple of weeks struggling to get through the complicated verification process, but he helped me get it across the finish line.
I'm glad that y'all have things in place to protect people from spammers and scammers, and great support people to help us real people and good actors to make it through those hoops.
This looks good. Number registration and a convenient API for sending SMS messages.
There was a misunderstanding with support.
[UPDATED] However, a customer success manager eventually reached out to me and helped resolve everything. It seems the issue was an exception.

Reply from Telnyx
Hello Telnyx Team,
I wanted to take a moment to express my appreciation for the level of support your team consistently provides.
Over the years, I’ve worked with many telecommunications companies, including some of the largest providers in the industry such as Twilio and Bandwidth. One thing that has always stood out to me about Telnyx is the responsiveness and dedication of your support team.
Running a company means that when issues arise, time is everything. Having access to knowledgeable support representatives who are willing to help quickly and efficiently makes a tremendous difference. In my experience, Telnyx has consistently been there when I needed assistance, and that level of service is something that is becoming increasingly rare.
The reliability of your platform is important, but the quality of your support is what truly sets Telnyx apart. I genuinely appreciate the effort your team puts into helping customers succeed.
Thank you for the excellent service and support. I look forward to continuing to grow my business with Telnyx.
I've had a great experience with Telnyx. The support team responds quickly, provides clear answers, and follows through until the issue is resolved. Number porting and account setup have been smooth, and the platform offers the flexibility and features we need for our business. Highly recommended for VoIP and telecom services.
If you are tired of not receiving any help at all from Twilio, then give Telnyx a try! The guys and gals at Telnyx will actually help you get your Brand and Campaign's up and running. For non-tech people it can be a little bit daunting, but the the support staff at Telnyx will guide you through the process and guide you through any changes you need to make. They also have better pricing than Twilio.
Great support! Quick to respond. Gave clear, easy troubleshooting tasks. Followed up with no prompting to ensure the issue had been resolved (it was on my end, so they could only see that the 2FA had been requested and sent twice). Honestly, I am a huge fan of innovation and technology, but I am a human, and it is nice and rare to feel valued and supported in a world full of machines.
I can't finish my sign up.
Because I can't finish my sign up, I can't delete my partially created account.
They keep spamming me email and keep ignoring the fact that I unsubscribed from ALL mailing lists.
Their contact page isn't working and there i no way to contact them. It feels like a data harvesting scam than a proper service.

Reply from Telnyx
I switched from another service and got my business profile and sms text campaign approved in at least 1/3 of the time with less headaches and better communication. (Actually the other service hadn't approved when I left, so it might have been worse). To be fair, I haven't extensively exerted their system yet, but so far so good.
I attempted to sign up to begin configuring & testing a set up. Their online registration rejected my request, so I completed a form requesting contact from sales. Telnyx has ignored that request.
Since they can't even respond in a timely fashion to a sales inquiry, that certainly bodes ill for a response from customer service if I have a problem.
I suppose I'll look elsewhere for a provider.

Reply from Telnyx
Our experience with Telnyx is great and we are using it for more than 5 years. One thing I like the best is reliability and never had down times so our clients are happy. Also able to get DID's for any area code our client needs. We are highly satisfied with their service and support. One thing we need to explore is their new offering AI voice solution and its seamless integration with SIP Trunk.
Telnyx has made number procurement/management less stressful with their built-in tools and easy to follow guides.
One area that needs improvement is their Support. We had received warning emails about abandoned calls. Since we own a number of phone numbers with Telnyx, we had to find the specific number that was referenced and then dig through call histories to find these abandoned calls. As none were found, we reached out to Telnyx Support for help, but they were not helpful at all. I needed clarification (in plain English) and they continually came back with telcom jargon that made no sense (as if they assumed we all are telco experts).
Finally, I reached out to their Customer Success Director and he was gratious enough to explain things in simple terms and guided me where to find the information needed.
In the end, we resolved the issues, but only thanks to the CS Director.
Telnyx, PLEASE train your staff on customer interactions and human response.
I don't recommend this company.,.
The service is exteremly slow. I opened a support ticket and they just made me talk to their stupid and hopeles AI chatbot the whole day. Then they reply with some generic answer. Don't trust them. Just see the other reviews and check for yourself. Running a business myself I KNOW what customer is, and I can tell you. They don't have ANY of it.

Reply from Telnyx
The porting process from VoIP Innovations to Telnyx was easy, simple, and very quick. The Telnyx team provided clear, well‑structured information throughout the entire process, making the transition smooth and hassle‑free. Overall, the communication and guidance exceeded expectations, and the port was completed without any issues.
Absolutely ridiculous support and bad product delivery. Bought a Dutch national number and is still not working after TWO WEEKS! Because of a carrier routing problem. Can you imagine that? Which means Dutch numbers aren't working with Telnyx already for that (or longer) period! Their ticket system is trash, sends multiple closing issue notice mails for same ticket.
Support (must be outsourced given their names) responses are slow and standard reply, and ask you for logs to proof what's going on, hahaha?! Keep away from this provider! Very very bad telnyx!

Reply from Telnyx
Very disappointing experience with Telnyx. The number I purchased has been showing “out of service” from the start, and despite multiple attempts to get help through calls, messages, and support tickets, I’ve gotten little to no real support.
At one point I was speaking with a customer service representative and the call was abruptly disconnected. Through messaging, I was told an engineer would follow up, but it has now been over a week with no update or resolution.
For a telecom provider, communication and support should be a priority, and unfortunately that has not been my experience at all. I would not recommend this service and i am now forced to dispute the payment with the bank
Super disappointing that telnyx can reply faster to a trust pilot review faster than how they can respond to there own tickets thats been sitting for almost a week and over $60 was paid and still cant use the service.

Reply from Telnyx
The Support is A Disaster , nobody cares i was asking to fix my issue
Address Validation: The portal continues to return an "invalid address" error for our headquarters: Rua Diogo Cão, Edifício Ruby 2
and is been litteraly 3 weeks waiting , today i received
We recently resolved your request with the ID of 2857195
and they litteralyy did nothing they didnt fix my issues , and that is costing me time , and effort and my automations

Reply from Telnyx
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