Thomas Groissenberger

Thomas has more than 25 years of experience in telecommunications, software testing and management. His expertise includes network design, engineering projects and test management for major carriers and international mobile operators. As Chief Executive Officer, he is leading the operational management and the expansion to international markets at Segron.
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Recent Posts

Are Tests Run on Rooted Devices Reliable?

Nov 26, 2019 3:00:00 PM / by Thomas Groissenberger posted in Automation, Device Testing

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Sometimes, the OS that comes built into an Apple or Android device can seem like it’s actively preventing you from doing what you want. And, to some extent, that’s true—Apple only lets you download the apps that are in the App Store because there are some actions that they want to prevent you from taking. As an end user, this often seems capricious and arbitrary. As a tester, it feels similar: why shouldn’t you be allowed to make the necessary changes and additions to the phone’s functionality to make end-to-end testing easier?

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What Does End-to-End Testing Mean for Telecoms?

Sep 19, 2019 9:00:00 AM / by Thomas Groissenberger posted in Network Testing, Automation, End-to-End Testing

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The digitization of telecommunications has led to the adoption of many software testing methodologies, including end-to-end (E2E) testing. Sometimes confused with system testing, E2E testing goes much farther, validating the interoperability of different network components and their complex interactions. 

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Outsourced vs. In-house: Which Testing Method is Better for Telecoms?

Sep 17, 2019 9:00:00 AM / by Thomas Groissenberger posted in Automation, Automation ROI

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At some point in their growth and development, most businesses regardless of industry eventually reach a point where they realize they can’t do it all themselves. Either they need help marketing their product, or some of their more tedious HR tasks could be outsourced, or their testing operations could be made more efficient by partnering with an outside agency. Some companies outgrow this stage and ultimately reclaim their ability to do things in-house, but others continue to grow with their partnerships in tact. Neither approach is necessarily better than the other—but they both present distinct pros and cons.

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3 Examples of End-to-End Telecom Testing in Action

Sep 12, 2019 3:00:00 PM / by Thomas Groissenberger posted in Automation ROI, End-to-End Testing

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We talk a lot on this blog about end-to-end testing, and we don’t plan to change that fact any time soon. Why? Because end-to-end still represents the only testing methodology that puts the needs of end-users at the center of the testing process—and end-user experience is only becoming more important in the ever-changing telecom domain. So, naturally we want to give our readers the tools and information they need to outline end-to-end tests within their networks in order to maintain a high quality of service. That’s why today we’re taking a deeper look at some specific instances of end-to-end testing, in order to provide a more concrete idea of what this methodology looks like in practice.

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How to Evaluate Telecom Testing Tools

Aug 29, 2019 9:00:00 AM / by Thomas Groissenberger posted in Customer Experience, Automation ROI

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We’ve talked a little bit already at this blog about how automated testing is becoming a virtual necessity for telco operators. As increasing device fragmentation and the proliferation of different protocols continue to inflate the number of use cases that require testing, human testers are struggling to keep up. But, if you’re reading this, you probably know all that. More than that, you’re probably almost ready to take the plunge and seriously consider an automated testing solution for your business. The question at this point is, how do you choose the right tool?

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5 Best Practices for Network Automation in 2019

Aug 15, 2019 3:00:00 PM / by Thomas Groissenberger posted in Network Quality, Network Testing, Automation

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Automation is often treated like a magic bullet, a cure-all for increasing demands on testing personnel who face new network quality concerns, additional devices, and other challenges every day. However, the truth is that automating any process, especially a critical one like network testing, is fraught with pitfalls. These five best practices can help ensure the success of network testing automation. 

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Does Your Test Partner Need to Be a Telco Expert?

Aug 9, 2019 9:00:00 AM / by Thomas Groissenberger posted in Network Quality, End-to-End Testing

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End-to-end testing—it’s all the rage right now in any number of industries, and with good reason. As global technologies become more connected and more thoroughly interwoven into the fabric of society, more thorough and efficient testing will become not just a luxury, but a necessity. As such, it should come as no surprise that a number of testing automation providers have cropped up in the past few years, covering everything from software security to telecoms. This, too, makes sense on the surface: how different could testing solutions for different industries really be? If you can automate verification for a new social media platform, why can’t you do the same for VoIP verification?

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3 Key Trends in Telecom Device Testing for 2019

Jul 30, 2019 9:00:00 AM / by Thomas Groissenberger posted in Automation, Device Testing, Internet of Things, IOT

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Smart cities. Augmented reality. Net neutrality. The Internet of Things. These are just some of the buzzwords in telecommunications right now. They all indicate a technology-driven shift in the industry, one that has fundamentally changed the successful telecom business model. As telecom companies seek to cut costs and keep customers, they must also take advantage of emerging technologies to power innovation.

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5G Is Coming: How Will Your Device Testing Keep Pace?

Jul 4, 2019 10:25:12 AM / by Thomas Groissenberger posted in Automation, Customer Experience

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In June of last year, The 3rd Generation Partnership Project set the official standards for standalone 5G, effectively paving the way for the era of true 5G functionality. It might be a little bit of an exaggeration to say that we’re now experiencing a race to create usable 5G networks and devices among the wireless carriers and device manufacturers of the world (Apple, for instance, has been forthright about its decision to wait until 2020 to roll out its first 5G-enabled smartphone), but the floodgates are certainly beginning to open—and carriers like Verizon and AT&T are already performing a limited rollout of 5G home and mobile networks. In Europe, a leading operator in the 5G space has already announced its support for the OPPO Reno 5G.

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Can Testing Automation Improve Network Quality?

Jul 3, 2019 9:00:00 AM / by Thomas Groissenberger posted in Network Quality, Automation

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According to a recent McKinsey study, network quality concerns comprise some of the most important factors impacting a given customer’s choice of mobile carrier. While pricing is still the most important one on average, survey respondents were also quick to list national and local coverage, network speed, and quality of 4G as critical deciding factors in carrier selection. In spite of the growing importance of network quality, however, McKinsey also found that the average quality of service for voice has decreased across Europe in recent years.

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