Change in osmo-e1-recorder[master]: README: update explaining the difference to other approaches

laforge has uploaded this change for review. ( https://gerrit.osmocom.org/c/osmo-e1-recorder/+/30033 ) Change subject: README: update explaining the difference to other approaches ...................................................................... README: update explaining the difference to other approaches Change-Id: Ie6afe8016c0168c2f0beee96d6c151c5b4cc5e81 --- M README 1 file changed, 17 insertions(+), 4 deletions(-) git pull ssh://gerrit.osmocom.org:29418/osmo-e1-recorder refs/changes/33/30033/1 diff --git a/README b/README index 149b547..1f7bc72 100644 --- a/README +++ b/README @@ -2,11 +2,24 @@ =================== (C) 2016 by Harald Welte <laforge(a)gnumonks.org> -The idea of this program is to be able to passively record E1/T1 based -communications for purposes of data analysis. +The idea of this program is to be able to build a "poor mans E1/T1 +recorder" purposes of data analysis, *without* any special +equipment. -Recording of a single E1 link always requires two E1 interface cards, -one for each direction. +This approach is more risky than a purely passive, hardware based +approach as that of the Osmocom e1-tracer released at +https://osmocom.org/projects/e1-t1-adapter/wiki/E1_tracer + +If you can, it is strongly recommended to use the purely passive, +high-impedance tap approach of e1-tracer and not the poor-man's +software proxy approach presented in osmo-e1-recorder. + +Setup +----- + +To do so, two E1 cards are used as some kind of proxy for the E1 +communication. 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 -- To view, visit https://gerrit.osmocom.org/c/osmo-e1-recorder/+/30033 To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings Gerrit-Project: osmo-e1-recorder Gerrit-Branch: master Gerrit-Change-Id: Ie6afe8016c0168c2f0beee96d6c151c5b4cc5e81 Gerrit-Change-Number: 30033 Gerrit-PatchSet: 1 Gerrit-Owner: laforge <laforge(a)osmocom.org> Gerrit-MessageType: newchange