code: @Override
  	public FAXSearchResult search(String corpNum, String sDate, String eDate,
  			String[] state, Boolean reserveYN, Boolean senderOnly, int page,
  			int perPage, String order) throws PopbillException {
  		return search(corpNum, sDate, eDate, state, reserveYN, senderOnly, page, perPage, order, null);
  	}
docs: /*
  (non-Javadoc)
  @see com.popbill.api.FaxService#search(java.lang.String, java.lang.String, java.lang.String, java.lang.String[], java.lang.Boolean, java.lang.Boolean, int, int, java.lang.String)