Filter help

Hello
I am a newbie to LDAP and I need help in developing a filter. Following is the hierarchy

o=office
- voffice
- ABC Group
-fax
-id=10
-phone
-id=10

Explanation: fax and phone both are at the same level. I want to write a filter that retreives only the id and other attributes that lie under the phone not under fax.I am unable to do that by writing this filter:
(uid=10)
which ofcourse is very simple but retrieves two entries one from the fax and one from the phone but i just want the phone entry. I hope this explains the problem pretty much any help would be very much appreciated

Regards
Ahmed Ajmal

specify the base dn with the phone dn then you'll get only results from under phone