I need to change the single zone page unit at a customers site to a multi zone. They currently have a Valcom page controller and I plan to replace it with a 3 zone unit also made by Valcom. The phone system is a Norstar MICS, not sure of the release. Does the MICS have more than one page port? If not does the page port pass DTMF tones required by a Valcom multi zone unit? If I remember correctly feature 60 accesses paging on a Norstar system and it prompts you for the zone, is this just for zones referring to paging to telephones?