First, Welcome to the board. Now on to more detailed items. Each vendor would use a basic plan for programming, tho each vendors would be slighly different. Basicly the vendor should walk thur with you during the initial set up, how you wanted each call, call type, and any special phones to re act to different items.
The DID number going to a phone in DND to VM, is a simple check marks in the forwarding path for that extension. ie. Day or night, DND, and for most likely Call Routing table. I say most likely because you PRI should ring into a call routing table, tho with only 8 employees, a PRI is a bit of an over kill.

Hope this helps some. Post again if you need more assistance.

------------------
Voice and Data Cabling in DFW, [email protected]
DnR Communications


Voice and Data Cabling in DFW, [email protected]
DnR Communications