derivedDataType PreferredPartyAddressDT

EcimDerivedString with length constraint (1..10) and pattern restriction. Allowed values are noPrefer, preferSIP, preferTEL, or both.

References from:
EcscfOfflineChargingProfileClass; ScscfOfflineChargingProfileClass;
stringPreferredPartyAddressDT [ 1..10 ]

Valid values: noPrefer|preferSIP|preferTEL|both
  derivedDataType PreferredPartyAddressDT