i dont believe there is an application to do that (correct me if i'm wrong) but there is an easy way to tell the different by doing this method....create two contact (same first name) but different last name like this...


first contact....
first name :corpse
last name : (cellphone)

second contact...
first name : corpse
last name : (phone)

now when the contact call you can tell the different...just never merge those contact...