Playing with the GSM RF Interface - CCC Event Weblog
Playing with the GSM RF Interface - CCC Event Weblog
Playing with the GSM RF Interface - CCC Event Weblog
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Motivation<br />
- <strong>GSM</strong> system and protocols not that well researched<br />
compared to TCP/IP (although <strong>GSM</strong> in use since 1992 in<br />
Germany)<br />
- Nearly impossible to "play" <strong>with</strong> <strong>GSM</strong> <strong>with</strong>out major effort<br />
- Situation has changed:<br />
* used equipment can be found<br />
* OpenBTS<br />
* OpenBSC<br />
* Airprobe<br />
- Specification is available from 3GPP or ETSI (huge, about<br />
2000 documents)
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