The type of called subaddress may be specified here. Possible values are ... any(1) type of subaddress doesn't matter user(2) subaddress of type user (as of ETS 300 102) nsap(3) subaddress of type NSAP (as of ETS 300 102) none(4) no subaddress may be specified For the sake of backward compatibility an empty string in isdnDspLocalSubAddress still serves as wildcard causing types 'any', 'user' and 'nsap' to actually make no difference. Only value 'none' will in such a case prevent that an entry matches in case subaddress information (with arbitrary contents) is present. NOTE: Value any(1) in conjunction with a subaddress only makes sense for direction 'incoming' as for outoing calls a discrete value must be given. However, if such an entry (any(1) plus subaddress specified) matches, no subaddress information is provided in outgoing call. Default value is nsap (again for backward compatibility reasons).