You need:
- osmoBSC (
osmo-bsc.cfg,nix-shell -p osmobsc) - osmoHLR (
osmo-hlr.cfg,nix-shell -p osmohlr) - 2x osmoMGW (
osmo-mgw-*.cfg, run one for each config file,nix-shell -p osmomgw) - osmoMSC (
osmo-msc.cfg,nix-shell -p osmomsc) - osmoSTP (
osmo-stp.cfg,nix-shell -p libosmo-sccp)
I used Nix to get all of the binaries (see the nix-shell invocations), but you can also get them from the osmocom website or perhaps your local distro if you're lucky. (You can get nix here with a curl-pipe-bash thingie.)
You also need a BTS pointed at osmoBSC -- edit osmo-bsc.cfg to configure what it is and the settings for it. (It's currently
configured for a sysmoBTS in the Ofcom shared access band.)
The osmocom wiki has more docs and is generally helpful -- you'll want to download the PDF manuals for the thing you're trying to configure.