URI 1 is */*/*, Incoming is Line Group 0, Outgoing is Line Group 0
URI 2 is Use Internal Data, Incoming is Line Group 0, Outgoing is Line Group 1
ARS 55 sends the Main Number, specified by the "S1112223333" after the "N", and uses Line Group 0
ARS 54 sends the Internal Data from the User's SIP tab, using Line Group 1