i need someone to teach me how to use the magnusbilling

i need someone to teach me how to use the magnusbilling 1. the DIDs all menu train. 2. set Plans, Tariffs, the Prefixes, if it's short number like 1250, can not call out. 3. set sound record, and now some line didn't have the sound record issues 4. the Routes all submenus 5. Voice Broadcasting 6. time in the system not right. 7. if we want to made a call, create sip account, the tariffs, the trunk, the prefix, etc, what the steps, which one is first, which one is last, order by order? 8. and also every time my local ip changes, it can not ping, i have to add IP address to the server, if not do that way, the sip account sometimes can not connect to the server, have other way to solve that. 9. sip account for spy call. 10. how to configure call out with the GOIP gateway 11. if some one call the mobile number from the GOIP gateway, it play a fixed sound.