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Luca Bongiorni luca.bongiorni1 at studenti.unimi.itHi Dario, which is the environment that you are using for the tests? (eg. OpenBSC or a PLMN: in this case which one? 01, 10, 88) Are you trying to just sniff the air or also stimulating the traffic with your own ME? Good results depends from many factors: - If the "session" is hopping through chans or not; - If the ME supports only GPRS or not; - If you are making tests on your own lab's environment or a PLMN; - an other related with the osmocombb's ME and the cable used. In case you don't use OpenBSC with nanobts or BS-11, i would suggest use to use an old ME that supports only GPRS and not EDGE, thus u will avoid it to use EDGE's coding-schemes (eg. i obtained good results with an old gprs usb modem on PLMNs). Then i would suggest you to find an ARFCN of a PLMN that doesn't hop: i found some good ones by checking with a Blackberry's Field Test [1]. [1] http://i41.tinypic.com/20huagj.jpg Cheers, Luca > I'm still not able to sniff enough data to reconstruct TCP sessions. > I can get datagrams (even TCP), but they look like "sparse" datagrams. Even using 2 sniffing phones I have a slightly better result, but not enough to consider it satisfying. > Are there some other steps that can be done? > > Is there anyone, other that gprs decoder authors, able to make it completely working? > > Thanks. > Dario.