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@@ -0,0 +1,27 @@ +Osmocom E1 recorder +=================== +(C) 2016 by Harald Welte <laforge@gnumonks.org> + +The idea of this program is to be able to passively record E1/T1 based +communications for purposes of data analysis. + +Recording of a single E1 link always requires two E1 interface cards, +one for each direction. + +Recording can be performed either +* passively, using a E1 Tap aapter +* asa proxy / man-in-the-middle + +All timeslots will be opened in "raw" mode, making sure the recording +will work wheter or not there is HLDC-based signalling (MTP or LAPD), +PCM voice, TRAU frames or anything else on the line. + +Recording will be done on a per-timeslot basis, dumping the raw bytes +read for this timeslot into a file. + +New files are started regularly, after reaching a pre-determined file +size limit. File names contain RTC time stamping and timeslot number. + +Later possible extensions could include automatic detection of the +payload and a more intelligent storage format (e.g. in case of HDLC +bsaed signalling). |