prioritize Outlook contacts in WM6.1

[Videorick]

I have a Sprint Mogul pocket PC phone with windows mobile 6.1. My question is, how do I prioritize my Outlook contacts as it relates to the contacts main business
number where multiple contacts have that same number? For example; I have an
Outlook contact titled ABC Plumbing and their main phone number is
202.555.1000. I have 3 other contacts that work for ABC Plumbing named John
Doe, Mary Simpson, and Mike Smith. All 3 contacts use the same main phone
number 202.555.1000. However, when I receive a call from that number
(202.555.1000) it shows up on my phone as Mary Simpson. I would like it to
display ABC Plumbing when someone calls from the main phone number.