LG VX-6100

for those who have the phone--is it possible to assign voice activeated dialing to each of the numbers under a particular contact, or can you only assign it to a particular contact, and it will always just dial that contact's default number?

I know that a way around this (if the the 6100 can not "dig" past the default number) is to just make a new phonebook entry for each number of a contact, but I prefer to have all numbers for one person under one contact heading.

Thanks.