Timeport P8767 programming questions

I'm looking to experiment with my old timeport P8767 phone. I'm a computer
programmer and primarily interested in talking to the phone to get some
information. What I'm most curious about is downloading the phone book data
like what verizon CS can do in-store.

Anybody have programming info for this phone or a service manual with
schematics?

Any help would be greatly appreciated and rewarded with my results (if
they're successful).

Thanks.