Kindly note that code is inherited from MJSIP I have added AKAv1-MD5 Auth also note that this is just basic implementation there is no multithreading implemented.
To run just create 2 files as follows file 1 : /tmp/userkeys username,k,opc [email protected],11223344556677889900aabbccddeeff,11223344556677889900aabbccddeeff
currently sqn is 1 and AMF is 8000 if you want to test on live 4g network then u need to make sure that sqn check in sim is disabled
if you are using osmosim then use "https://www.sysmocom.de/manuals/sysmousim-manual.pdf"
also currently only IMSI based calling is enabled so no phone number are recognized
It really a dirty commit and may be god willing i may create better version of this.