4.3.2 LDAP Find Online User LDAP Search Operation
The search for online users is achieved by performing an LDAP search. The search is performed with objectClass=rtPerson, SearchScope: base Object. Three additional attributes are used in the search:
cn=%. This is an ILS LDAP variation indicating a wild card search on the cn.
Return entries with sappid=ms-netmeeting. (Note that sappid maps to applicationID.)
Return entries with a sprotid=h323. (Note that sprotID maps to protocolID.)