The world of telecommunications in recent years has been characterized by a remarkable growth and spread, especially as regards the mobile field, a service now available in almost all of the countries around the world. Like many other sectors which experienced rapid growth and high technological development, the telecommunications world has seen the entry of some good open-source projects, in some cases resulted in equally valid and useful commercial products. A real revolution has been brought, for example, by Asterisk, an open-source application able to transform an ordinary PC into a high performance and affordable PBX. Asterisk can be used as a switchboard for home, office, or even as a VoIP service provider, and is also available as a commercial product of Digium. Other examples are provided by the GNU Radio project, an SDR (Software Defined Radio) application, and the project which will be discussed now, namely theOpenBTS, which allows you to do phone calls using a normal GSM cellular without accessing the existing mobile phone networks of the mobile providers.
The world of telecommunications in recent years has been characterized by a remarkable growth and spread, especially as regards the mobile field, a service now available in almost all of the countries around the world. Like many other sectors which experienced rapid growth and high technological development, the telecommunications world has seen the entry of some good open-source projects, in some cases resulted in equally valid and useful commercial products. A real revolution has been brought, for example, by Asterisk, an open-source application able to transform an ordinary PC into a high performance and affordable PBX. Asterisk can be used as a switchboard for home, office, or even as a VoIP service provider, and is also available as a commercial product of Digium. Other examples are provided by the GNU Radio project, an SDR (Software Defined Radio) application, and the project which will be discussed now, namely theOpenBTS, which allows you to do phone calls using a normal GSM cellular without accessing the existing mobile phone networks of the mobile providers.
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