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| author | Dieter Spaar <spaar@mirider.augusta.de> | 2010-07-29 21:35:13 +0200 |
|---|---|---|
| committer | Harald Welte <laforge@gnumonks.org> | 2010-07-29 21:35:13 +0200 |
| commit | f86cfbef19c6faaea4e7c90f412d55a189fdbd48 (patch) | |
| tree | 72180fa82a8845edc6c709cf39267c4671167d38 | |
| parent | 9baae39b8d98a3271f03a1848c62180f129a775f (diff) | |
Update README file with some more notes
| -rw-r--r-- | gsm-receiver/README | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/gsm-receiver/README b/gsm-receiver/README index 96b560b..190c6cb 100644 --- a/gsm-receiver/README +++ b/gsm-receiver/README @@ -3,3 +3,23 @@ Usage: $ capture.sh <frequency> -run go.sh on this file: $ go.sh <file.cfile> + + +* Configuration parameter for decoding a certain timeslot: + Single digit (Timelslot) followed by the configuration, for example: + 0C : TS0 "Combined configuration", with SDCCH/4 (FCCH + SCH + BCCH + CCCH + + SDCCH/4) + 0B : TS0 "FCCH + SCH + BCCH + CCCH" + 1S : TS1 SDCCH/8 + 2T : TS2 Traffic + +* Specifying a key will decrypt all traffic burst (SDCCH, SACCH, TCH) + using A5/1 before decoding + +* Use Wireshark and GSMTAP instead of "gsmdecode" + +* Limitations: + - only TCH_F traffic + - no decoder besides "toast" for Full Rate Speech + - single ARFCN only + - no frequency hopping |