28 lines
1001 B
Plaintext
28 lines
1001 B
Plaintext
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).
|