B179 Conference Unit and LDAP

[Xzinum]

I'm not sure if this is the right place for this question but i'll ask anyways.

I'm trying to get the B179 to use LDAP for the external phone book, but it only works partially.
If you type the first letter, it'll come back with results, but if you enter a second letter as a search string, i get a "Connection Failed" on the conference unit.

Here's what the logs say:

Jun 21 08:36:14: INF: mmi: Trying to reconnect to LDAP server.
Jun 21 08:36:14: INF: ldap_functions: Successfully connected to the LDAP server.
Jun 21 08:36:14: INF: ldap_functions: Username exits. Attempt LDAP bind.
Jun 21 08:36:14: INF: ldap_functions: Bind successful.
Jun 21 08:36:14: INF: ldap_functions: Search filter before conversion: 
Jun 21 08:36:14: INF: ldap_functions: Search filter after conversion: (|(sn=*)(cn=*))
Jun 21 08:36:14: INF: ldap_functions: Searching with filter: (|(sn=*)(cn=*))
Jun 21 08:36:14: INF: ldap_functions: Size limit exceeded on LDAP search.
Jun 21 08:36:14: INF: ldap_functions: The search returned 50 results.
Jun 21 08:36:15: INF: Sorting LDAP results.
Jun 21 08:36:15: INF: mmi: Reconnect and new search successful.
Jun 21 08:36:25: INF: ldap_functions: Search filter before conversion: J
Jun 21 08:36:25: INF: ldap_functions: Search filter after conversion: (|(sn=J*)(cn=J*))
Jun 21 08:36:25: INF: ldap_functions: Searching with filter: (|(sn=J*)(cn=J*))
Jun 21 08:36:25: INF: ldap_functions: Size limit exceeded on LDAP search.
Jun 21 08:36:25: INF: ldap_functions: The search returned 50 results.
Jun 21 08:36:27: INF: Sorting LDAP results.
Jun 21 08:36:30: INF: ldap_functions: Search filter before conversion: JO
Jun 21 08:36:30: INF: ldap_functions: Search filter after conversion: (|(sn=JO*)(cn=JO*))
Jun 21 08:36:30: INF: ldap_functions: Searching with filter: (|(sn=JO*)(cn=JO*))
Jun 21 08:36:30: ERR: ldap_functions: ldap_search_ext_s failed: Operations error
Jun 21 08:36:30: INF: mmi: Trying to reconnect to LDAP server.
Jun 21 08:36:30: INF: ldap_functions: Successfully connected to the LDAP server.
Jun 21 08:36:30: INF: ldap_functions: Username exits. Attempt LDAP bind.
Jun 21 08:36:30: INF: ldap_functions: Bind successful.
Jun 21 08:36:30: INF: ldap_functions: Search filter before conversion: JO
Jun 21 08:36:30: INF: ldap_functions: Search filter after conversion: (|(sn=JO*)(cn=JO*))
Jun 21 08:36:30: INF: ldap_functions: Searching with filter: (|(sn=JO*)(cn=JO*))
Jun 21 08:36:30: ERR: ldap_functions: ldap_search_ext_s failed: Operations error
Jun 21 08:36:30: INF: mmi: Reconnect or new search failed.

Halp!