code: protected void doAddressPresentationRestricted() {
  
          if (this.addressRepresentationRestrictedIndicator != _APRI_NOT_AVAILABLE)
              return;
          // NOTE 1 If the parameter is included and the address presentation
          // restricted indicator indicates
          // address not available, octets 3 to n( this are digits.) are omitted,
          // the subfields in items a - odd/evem, b -nai , c - ni and d -npi, are
          // coded with
          // 0's, and the subfield f - filler, is coded with 11.
          this.oddFlag = 0;
          this.natureOfAddresIndicator = 0;
          this.numberingPlanIndicator = 0;
          this.numberIncomplete = _NI_COMPLETE;
          // 11
          this.screeningIndicator = _SI_NETWORK_PROVIDED;
          this.setAddress("");
      }
docs: makes checks on APRI - see NOTE to APRI in Q.763, p 23