Timesport P8767 phone on 2000 E430

Hi,

I found timeport cell phone on ebay that matches with my service provider(Verizon).
How can I check if the phone is compatible with my E430, I think previous car owner used phone for the car, so I have evething wired and only the phone is missing under the arm rest unit. Can you help me what should I check before I purchase the phone on the eBay.

Thanks.