hallo , please can someone help my get my Phone calls & data back?

hallo, I have Galaxy S4 I9500, i had Resurrection remix 5.0.1 Installed on my Galaxy S4, then I Wanted to switch to Aurora S6 PORT v2, after wiping & installing the new one i lost my Phone calling Option & data also, (Not Registerd on Network) Note that I Have my IMEI Installed Normaly & the right one, But i cant get it to work as a phone, i also want to know which modem should i install or which PDA because i cant Get my phone's PDA original numbers after installing custom rom (Am i right in this or its not changing with roms?! am noob sry :D) so yeah can someone help me please get my phone back ? :D