attributetype      (1.2.840.113556.1.4.478
        NAME 'calCalURI'
        EQUALITY caseIgnoreMatch
        SUBSTR caseIgnoreMatch
        SYNTAX 1.3.6.1.4.1.1466.115.121.1.26
	SINGLE-VALUE
        USAGE userApplications )

attributetype      (1.2.840.113556.1.4.479
        NAME 'calFBURL'
        EQUALITY caseIgnoreMatch
        SUBSTR caseIgnoreMatch
        SYNTAX 1.3.6.1.4.1.1466.115.121.1.26
	SINGLE-VALUE
        USAGE userApplications )

attributetype      (1.2.840.113556.1.4.480
        NAME 'calCAPURI'
        EQUALITY caseIgnoreMatch
        SUBSTR caseIgnoreMatch
        SYNTAX 1.3.6.1.4.1.1466.115.121.1.26
	SINGLE-VALUE
        USAGE userApplications )

attributetype      (1.2.840.113556.1.4.481
        NAME 'calCalAdrURI'
        EQUALITY caseIgnoreMatch
        SUBSTR caseIgnoreMatch
        SYNTAX 1.3.6.1.4.1.1466.115.121.1.26
	SINGLE-VALUE
        USAGE userApplications )

attributetype        (1.2.840.113556.1.4.482
        NAME 'calOtherCalURIs'
        EQUALITY caseIgnoreMatch
        SUBSTR caseIgnoreMatch
        SYNTAX 1.3.6.1.4.1.1466.115.121.1.26
        USAGE userApplications )

attributetype      (1.2.840.113556.1.4.483
        NAME 'calOtherFBURLs'
        EQUALITY caseIgnoreMatch
        SUBSTR caseIgnoreMatch
        SYNTAX 1.3.6.1.4.1.1466.115.121.1.26
        USAGE userApplications )

attributetype      (1.2.840.113556.1.4.484
        NAME 'calOtherCAPURIs'
        EQUALITY caseIgnoreMatch
        SUBSTR caseIgnoreMatch
        SYNTAX 1.3.6.1.4.1.1466.115.121.1.26
        USAGE userApplications )

attributetype      (1.2.840.113556.1.4.485
        NAME 'calOtherCalAdrURIs'
        EQUALITY caseIgnoreMatch
        SUBSTR caseIgnoreMatch
        SYNTAX 1.3.6.1.4.1.1466.115.121.1.26
        USAGE userApplications )

objectclass (1.2.840.113556.1.5.87
        NAME 'calEntry'
        SUP TOP
        AUXILIARY
        MAY (calCalURI $ calFBURL $ calOtherCalURIs $ calOtherFBURLs $ calCAPURI $ calOtherCAPURIs) )