OpenBTS is an implementation of the GSM air interface (Um) that allows cellular handsets to be used directly as SIP endpoints. It uses a software-defined radio to generate its air interface and uses Asterisk or yate as its network interface.
License
Affero GNU Public License, GNU General Public License version 3.0 (GPLv3)Other Useful Business Software
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User Reviews
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great work!
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This is really a great work!
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this will help deploy DIY GSM antennas in developing countries
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Has cleared the GSM telephonic concept in a precise manner ...THANKS