osmo-remsim is a suite of software programs enabling physical/geographic
separation of a cellular phone (or modem) on the one hand side and the
SIM/USIM/ISIM card on the other side.
Using osmo-remsim, entire fleet of modems/phones can be operated on, as
well as banks of SIM cards and dynamically establish or remove the
connections between modems/phones and cards.
In technical terms, it behaves like a proxy for the ISO 7816 smart
card interface between the MS/UE and the UICC/SIM/USIM/ISIM.
It can also be used with other systems that use contact-based smart
cards according to ISO 7816. Only the T=0 protocol with standard
(non-extended) APDUs is supported.