outbound patton sn4120 caller id

  1. outbound caller ID / other ISDN line / MSN

    hello i have a patton SN4120 with 2 isdn lines setup on 3CX V.15 is there a way for certain extensions to go outbound from the 2nd ISDN line number or another MSN set. I cant find anything else than going out from the main trunk number that i have set ? this is a big problem i am facing. thanks