setAttributeValue(result, fessConfig.getLdapAttrTeletexTerminalIdentifier(),
                        o -> user.setTeletexTerminalIdentifier(o.toString()));
                setAttributeValue(result, fessConfig.getLdapAttrX121Address(), o -> user.setX121Address(o.toString()));
                setAttributeValue(result, fessConfig.getLdapAttrBusinessCategory(), o -> user.setBusinessCategory(o.toString()));

     * The value is, e.g. x121Address <br>
     * comment: LDAP attribute for X.121 address.
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getLdapAttrX121Address();

    /**
     * Get the value for the key 'ldap.attr.businessCategory'. <br>
     * The value is, e.g. businessCategory <br>
     * comment: LDAP attribute for business category.