Phone Fields in Sugar are annoying. Having to manage between phone_home, phone_mobile, phone_office, phone_other, phone... ..... that is a lot to remember and not to mention keep straight amongst all of your templates (try adding all of the phone fields to a listview and see it get out of hand quick). Phone Fields should be like the email field where you have one object such as email1 or email field and then you can add on as many as possible. Same in listview where you add on field and it displays all of the phone numbers in one column.