GSM decoding library in .net framework

I want to decode GSM data packet. As we provide xml to wireshark and it decodes and show开发者_如何学Pythons the decoded data in the form of treeview. GSM packet of all kinds like RR (Radio Resource) , MM (mobility Managemnt ) and CC (Call Control), rite now I have write all the gsm codes with their respective meanings in gsm,by following gsm standard code guides but its very tough to write all codes.

I want to know if there is any other library available which could save my time , I just have to provide it HEX data value of GSM data, and it returns me results.

In GSM, A3 algorithm is used for authentication, A5/1 is used for over the air protection and A8 is key generation algorithm. A C implementation of A5/1 and A5/2 algorithms is available here:
http://edipermadi.files.wordpress.com/2008/03/pedagogical_implementation_of_a5_cipher.pdf

Since these algorithms are xor-based, it must be easy to port them to any of .Net languages.

Hope it helps