INTEGER{ non-attributed-number(1), no-route-to-destination(3), unacceptable-channel(6), normal-call-release(16), user-busy(17), user-do-not-answer(18), notified-user-no-answer-from-user(19), rejected-call(21), changed-number(22), destination-out-of-service(27), non-valid-number-format(28), normal(31), no-circuit-or-available-channel(34), network-out-of-service(38), temporal-failure(41), congestion-in-switching-node(42), demanded-circuit-or-non-available-channel(44), non-available-resources(47), non-available-quality-of-service(49), not-authorized-carrier-capacity(57), not-authorized-carrier-capacity-at-the-moment(58), service-class-or-non-available-option(63), not-performed-carrier-capacity(65), not-performed-channel-type(66), not-performed-option-or-service(79), non-valid-call-reference-value(81), non-existent-identified-channel(82), incompatible-destination(88), non-valid-message(95), mandatory-information-element-absent(96), message-type-non-existent-or-non-performed(97), message-non-existent-or-non-performed(98), information-element-non-existent-or-non-performed(99), information-element-content-non-valid(100), incompatible-message-with-call-status(101), recovering-at-timer-expiration(102), protocol-error(111), interworking(127) }