stevet96,
Welcome to the forum!
I am not familiar with Packet 8, but I assume it is some sort of Voice over IP.
It is hard to give a definite answer at this point. The phone line has not been used by VOOM so far, so no one knows for sure how exactly it will be used in the future. There are at least three issues with VoIP:
1. A phone jack. I assume Packet 8 provides that. Right?
2. Sufficient speed and bandwidth for data communication. Can you use any fax or modem over Packet 8? At what maximum speed?
3. CallerID. I am not positive, but VOOM might need to be able to identify your originating phone number. Does this work with Packet 8? What one would see on a CallerID display if the phone call comes from you over Packet 8?
The good news for you: it shouldn't matter for your tomorrow's install, as the phone line is not needed for service activation.