Founded in March 1998 by Andrew Walding, CellStream, Inc. is a one-man, small, focused, and nimble technology consulting and training company specializing in telecommunications, networking, broadband, wireless communications, and Internet technologies. For more than two decades, CellStream has helped organizations solve complex technical challenges, develop innovative solutions, and stay ahead of rapidly evolving technologies.
Our clients include the organizations that build, operate, and support the technologies that power today’s connected world—from network equipment manufacturers and software developers to broadband providers, telecommunications carriers, enterprise organizations, and technology professionals.
Expertise Across the Technology Landscape
CellStream provides consulting, advisory, design, troubleshooting, and educational services spanning a broad range of disciplines, including:
- Data networking and Internet technologies
- Broadband and telecommunications systems
- Network architecture and design
- Wi-Fi and wireless communications
- Voice, video, and unified communications
- Cloud and data center technologies
- Protocol analysis and troubleshooting
- Network management and operations
- Cybersecurity and network visibility
- Product and technology development
Our experience encompasses both legacy and emerging technologies, with particular expertise in converged voice, video, and data services operating across high-performance wired and wireless networks.
Consulting, Education, and Knowledge Transfer
At CellStream, we believe that solving a problem is only part of the solution. Equally important is helping clients understand the technologies, methodologies, and best practices behind the solution.
This philosophy has made education and knowledge transfer a core component of our business. By combining consulting expertise with practical instruction, we help organizations build internal capabilities while addressing immediate business and technical challenges.
Over the years, this commitment to education led to the development of the CellStream Network Science curriculum—a comprehensive collection of training programs designed to help technology professionals rapidly acquire new skills, understand complex technologies, and improve their ability to design, deploy, operate, and troubleshoot modern networks.
The Online School of Network Science
To support the growing demand for flexible technical education, CellStream developed the Online School of Network Science, providing students with access to self-paced learning, instructor-led training, technical resources, and practical learning experiences.
Our training programs cover a wide range of topics including networking fundamentals, Ethernet, Wi-Fi, IPv4 and IPv6, broadband technologies, VoIP, protocol analysis, Wireshark, network troubleshooting, cybersecurity, and many other areas critical to today’s technology professionals.
By leveraging modern online learning platforms and Internet-based delivery methods, CellStream helps organizations reduce training costs, accelerate skill development, and provide employees with convenient access to high-quality technical education.
Our Mission
Our mission is simple: help organizations and technology professionals better understand, deploy, manage, and troubleshoot the technologies that connect our world.
Whether through consulting engagements, architecture reviews, troubleshooting services, technical training, or educational content, CellStream remains committed to delivering practical expertise, actionable knowledge, and measurable value to every client we serve.
We invite you to explore our consulting services, technical resources, and training programs to discover how CellStream can help you strengthen your technical capabilities and achieve your business objectives.
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