Hi!
I've been working on a set of patches to enable configuring the nanoBTS to not only support GPRS but also EDGE. After some testing, I've merged them into the master branch.
In order to enable EDGE, you need to use 'gprs mode egprs'.
Also, you still need an external SGSN or use the gprs-sgsn branch (which has been rebased). Your phones should then show 'E' instead of 'G'.
I haven't actually benchmarked the transfer speed, i.e. if it really is giving the expected performance improvement.
Regards, Harald