As one of the original developers of the OpenBTS project, I’m excited to see this book become a reality. It all started in our living rooms; we were not telecom people—we were digital signal processing (DSP) software guys who had been doing GSM stuff, started playing with some early software defined radios, got introduced to VoIP, and just wanted to see if we could build our own mobile network for less than the GDP of a South Pacific island.
Since the original source code release in 2008, it’s been astounding to see the widespread adoption and interest in OpenBTS, which now helps provide cellular service on all seven continents (including several islands) and has found its way into innumerable labs and
universities. It has really grown into a force for change in telecommunications.
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