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Built to Scale Your Business
We design and scale carrier-grade VoIP solutions, backed by 16 years of telecom expertise and modern AI. As a VoIP development company and telecom engineering company, we build reliable, scalable VoIP platforms, softswitches, call centers, and softphones.
Sixteen years of telecom engineering, delivered worldwide.
We created a widely used open-source platform and continue to support the VoIP community through sponsorships and speaking at the events shaping open-source VoIP.
Sponsor and speaker at ClueCon with “Building the Next-Gen Contact Center with WhatsApp Business Calling and AI.”
Sponsor and speaker at the OpenSIPS Summit 2026 in Bucharest, the annual gathering of the OpenSIPS community.
Selected for the 2026 AstriCon program at SCALE 23x with “Scaling Telephony Systems: Lessons from 100 to 10,000 Calls.”
Trusted by 12000+ businesses across 95+ countries, built and maintained by our team.
Deep telecom expertise at the core, backed by the software skills needed to deliver the complete platform.
Custom platforms, softswitches, IVR, call centers, and unified communications, built and scaled on open-source telephony.
Clustering, load balancing, and failover for platforms that stay reliable as your traffic grows.
Architecture reviews, troubleshooting, VoIP consulting services, and 24/7 engineer-led support.
Telecom engineers who work as an extension of your team. Hire VoIP developers with real-world telecom expertise.
iOS and Android apps built with VoIP capabilities and ready to integrate with your communication platform.
Web applications and cloud operations to support your complete VoIP and telecom environment.
Standalone enterprise products that work out of the box and can be customized and integrated by our developers.
VoIP Billing & Softswitch
Call Center software
White-label WebRTC softphone
One engineering team combining carrier-grade VoIP development experience with modern AI, backed by support that stays with you after launch.
Platforms engineered to grow with your traffic and changing business needs.
Senior telecom engineers with deep VoIP expertise, not generalists.
An expert on the other end, not just a ticket queue.
A clear process and quick, low friction start.
Clear communication and regular check-ins, with no surprises.
Modern AI helps us build, test, and deliver faster and smarter.
Our clients trust us for our deep VoIP expertise, technical excellence, and commitment to delivering reliable communication solutions. Read their experiences and discover how we have helped businesses achieve their goals.
Amazing group of guys to work with. After the quality of work I saw in the first project completed, we have decided to move all our development over to Inextrix. All work was completed on time and as expected. Would not think twice to recommend these guys.
Platformity
We were looking for a reliable IP PBX solution as our conventional system had a lot of limitations. I'm happy with the solution and service provided by Inextrix. They gave us scalable IP PBX software and also integrated our CRM system and automated billing solution. This system increased productivity and ROI significantly.
Vice President, 8COM Inc
Hi, I just wanted to send you guys a quick message on how great its been working with you guys on our voip development needs, in the last 3-4 years, you have been very responsive and always care about delivering the work as much as we do. Im very impressed with the high level of talent that you guys have and am grateful that I could find such dependable voip professionals that always do what they say they will. take care -Albert
CleverMoto
Choose the model that matches your scope, budget, and how you want to run the project.
Best for: a clear, well-defined scope
Best for: Extending your team fast
Best for: Evolving requirements
Get quick answers to common questions about Inextrix products, solutions, VoIP engineering services, and technologies.
Inextrix is a telecom engineering company and VoIP development company. We build, scale, and support carrier-grade VoIP platforms using Asterisk, FreeSWITCH, OpenSIPS, Kamailio, and more. We also develop ASTPP, iCallify, and Fonimo, along with mobile, web, and DevOps solutions.
We use modern AI to accelerate development, testing, and analysis, while also building AI-enabled telecom features such as AI dialers and voice automation. Our senior developers remain in control of the final outcome.
Yes. You can hire VoIP developers and extend your team with our telecom engineers on a full-time basis, with daily standups, flexible scaling, and clear communication.
Yes. We offer 24/7 monitoring and engineer-led support, preventive maintenance, and ongoing improvements after launch.
We work with VoIP service providers, ITSPs, UCaaS and CPaaS companies, call centers, softswitch operators, and telecom startups worldwide.
Yes. You own 100% of the source code. We provide clean, documented code and knowledge transfer so you are never locked in.
With decades of experience and know-how in software development essentials, we build future-proof, intuitive, and highly scalable web, mobile, and VoIP solutions. Bring ultimate success to your business with Next-Gen, Tech-Empowered Solutions.
425 W Colonial Dr, Suite 303 Orlando, FL 32804 United States
128 City Road London EC1V 2NX United Kingdom
Baobab Office Park, 86 John Vorster Rd, Randpark Ridge 2169 South Africa
508–509, Lilamani Corporate Heights Ahmedabad, Gujarat 380013 India
Established in 2010, we're a team of tech enthusiasts driving businesses to success with cutting-edge technology.
Copyright © 2026 Inextrix Technologies Pvt. Ltd.
