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Gabriele.rago gabriele.rago at email.itHello all, I would do a sim-emulator software that runs on my PC. First thing to do is a an interface to connect my PC with sim slot phone. So I am using this simple interface : I took a CP2102 module, see this page for example http://esaid.free.fr/Cdotnet/USB_serial.htm, then I have put a diode between TXD and RXD, then I have connected RXD to I/O of phone sim slot, DSR of CP2102 module to RESET of phone sim slot and connected the two grounds. __________ | |________ TXD +5V------| | | DP------| CP2102 |___ \/__ RXD ------- I/O phone sim slot DM------| | GND-----| |--------- DSR ------- RESET phone sim slot | | |_________|-------- GND ------- GND phone sim slot I have tested this interface with a phone , I can detect reset from phone then I send this ATR: 3B 16 95 D0 01 7B BD 0D 00 ( this is the ATR I can read form a real sim card with a phoenix reader), but I don't have any response from phone. Any help is appreciated, thanks. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.osmocom.org/pipermail/simtrace/attachments/20120628/4c46e4db/attachment.htm>