Q.931 Disconnect Causes

UNASSIGNED_NUMBER        0x01  /* Cause 01 */

NO_ROUTE                 0x02  /* Cause 02 */

CHANNEL_UNACCEPTABLE     0x06  /* Cause 06 */

NORMAL_CLEARING          0x10  /* Cause 16 */

USER_BUSY                0x11  /* Cause 17 */

NO_USER_RESPONDING       0x12  /* Cause 18 */

NO_ANSWER_FROM_USER      0x13  /* Cause 19 */      

CALL_REJECTED            0x15  /* Cause 21 */

NUMBER_CHANGED           0x16  /* Cause 22 */

DEST_OUT_OF_ORDER        0x1B  /* Cause 27 */

INVALID_NUMBER_FORMAT    0x1C  /* Cause 28 */

FACILITY_REJECTED        0x1D  /* Cause 29 */

RESP_TO_STAT_ENQ         0x1E  /* Cause 30 */

UNSPECIFIED_CAUSE        0x1F  /* Cause 31 */

NO_CIRCUIT_AVAILABLE     0x22  /* Cause 34 */

NETWORK_OUT_OF_ORDER     0x26  /* Cause 38 */

TEMPORARY_FAILURE        0x29  /* Cause 41 */

NETWORK_CONGESTION       0x2A  /* Cause 42 */

ACCESS_INFO_DISCARDED    0x2B  /* Cause 43 */

REQ_CHANNEL_NOT_AVAIL    0x2C  /* Cause 44 */

PRE_EMPTED               0x2D  /* Cause 45 */

FACILITY_NOT_SUBSCRIBED  0x32  /* Cause 50 */

OUTGOING_CALL_BARRED     0x34  /* Cause 52 */

INCOMING_CALL_BARRED     0x36  /* Cause 54 */

BEAR_CAP_NOT_AVAIL       0x3A  /* Cause 58 */

SERVICE_NOT_AVAIL        0x3F  /* Cause 63 */

CAP_NOT_IMPLEMENTED      0x41  /* Cause 65 */

CHAN_NOT_IMPLEMENTED     0x42  /* Cause 66 */

FACILITY_NOT_IMPLEMENT   0x45  /* Cause 69 */

INVALID_CALL_REF         0x51  /* Cause 81 */

CHAN_DOES_NOT_EXIST      0x52  /* Cause 82 */

INCOMPATIBLE_DEST        0x58  /* Cause 88 */

INVALID_MSG_UNSPEC       0x5F  /* Cause 95 */

MANDATORY_IE_MISSING     0x60  /* Cause 96 */

NONEXISTENT_MSG          0x61  /* Cause 97 */

WRONG_MESSAGE            0x62  /* Cause 98 */

BAD_INFO_ELEM            0x63  /* Cause 99 */

INVALID_ELEM_CONTENTS    0x64  /* Cause 100 */

WRONG_MSG_FOR_STATE      0x65  /* Cause 101 */

TIMER_EXPIRY             0x66  /* Cause 102 */

MANDATORY_IE_LEN_ERR     0x67  /* Cause 103 */

PROTOCOL_ERROR           0x6F  /* Cause 111 */

INTERWORKING_UNSPEC      0x7F  /* Cause 127 */