Hi,
Those femtocells use ipsec to which the keys are not available (yet). The ones that were not automatically upgraded by Vodafone and therefore expose a serial shell might be used, but that requires some more investigation (and sadly not much of un-upgraded versions exists...also downgrading isn't an option if I'm correct because they do this inside the IPsec tunnel).
Maybe Kevin has more memories about them :).
Other femtocells (e.g. SFR) that use EAP-SIM should be easily connected to an open core network by simply using SIM cards with known keys.
Cheers,
Domi
Does anybody know if it would be possible to use some of the old vodaphone-femtocells together with openbsc/osmo-bts?
Regards
Erich
Short answer: no & no
1 - A gsm repeater is an analog device. With osmocom-bb phones you would need to demodulate/remodulate bursts.
This will mess with timing advance, and you won't be able to send bursts in the same frame/timeslot they were received.
2 - Calypso don't/won't support 3G.
Regards