8ef966aa21
This prevents corrupt frames, as well as clear pending frames that were received during the old mode, but may not be received during the new mode.
This software implements base station protocol of classic mobile phones. With radio transmitter and receiver connected to one sound card and a headset connected to another sound card, it is possible to make and receive calls to and from mobile phone. Currently supported networks: * A-Netz * B-Netz (ATF-1) * C-Netz * NMT 450 (Nordic Mobile Telephone) * AMPS (Advanced Mobile Phone System) USE AT YOUR OWN RISK! Acknowledgements: Carsten Wollesen for donating Telefunken 4015 B-Netz phone back in the 90's. Klaus Adler for helping me to retrieve complete NMT specification and donating a BSA44 (magnetic card C-Netz hackable phone) back in the 90's. Andy Zauner for providing signaling specification of C-Netz back in the 90's. Hans Wigger for providing valuable informations about A-Netz and B-Netz and helping me to get an A-Netz phone. Stephan Hessberger for his work on oebl.de, that provides valuable informations about A-Netz, B-Netz and C-Netz. Friedhelm Hillebrand for providing complete specification of the mobile phone of C-Netz. Mikko Ristila for providing newer NMT specs (with DMS/SMS specifications). Dieter Spaar and Mark Atherton for prividing AMPS informations and recordings to verify and debug AMPS support. See http://www.idesignz.org/AMPS/AMPS_BS.html for first base station implementation of AMPS. Telecommunication Industry Association for providing TIA/EIA-533 documentation. "Reproduced under written permission from Telecommunications Industry Association." Eric from Smart Card World and Karsten Niehusen from cardomatic.de for providing memory cards to be programmed for older C-Netz phone.