4.  Under Ring Groups setting page, click  . Ring Groups can be found under web 
UI-> PBX-> Call Features-> Ring Groups. 
5.  If LDAP server is synced correctly, Available LDAP Numbers box will display available remote extensions 
that can be included in the current ring group. Please also make sure the extensions in the peer UCM6200 
can be included into that UCM6200’s LDAP contact.   
 
Figure 139: Ring Group Remote Extension