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<h2><a href="https://wiki.asterisk.org/wiki/display/AST/Hangup+Cause+Mappings">Hangup Cause Mappings</a></h2>
<h4>Page <b>edited</b> by <a href="https://wiki.asterisk.org/wiki/display/~jcolp">Joshua Colp</a>
</h4>
<br/>
<h4>Changes (51)</h4>
<div id="page-diffs">
<table class="diff" cellpadding="0" cellspacing="0">
<tr><td class="diff-unchanged" >h2. Asterisk Hangup Cause Code Mappings <br> <br></td></tr>
<tr><td class="diff-changed-lines" >|| Asterisk Value || Q.931 Cause Text || MFC/R2 || SIP || <span class="diff-added-words"style="background-color: #dfd;">Motif ||</span> <br></td></tr>
<tr><td class="diff-changed-lines" >| AST_CAUSE_NOT_DEFINED | Cause not defined | OR2_CAUSE_UNSPECIFIED <span class="diff-changed-words">|&nbsp;|<span class="diff-added-chars"style="background-color: #dfd;">&nbsp;|</span></span> <br></td></tr>
<tr><td class="diff-changed-lines" >| AST_CAUSE_UNALLOCATED | Unallocated (unassigned) number |&nbsp;| 404, 485, 604 <span class="diff-deleted-words"style="color:#999;background-color:#fdd;text-decoration:line-through;">|</span> <span class="diff-added-words"style="background-color: #dfd;">|&nbsp;|</span> <br></td></tr>
<tr><td class="diff-changed-lines" >| AST_CAUSE_NO_ROUTE_TRANSIT_NET | No route to specified transmit network <span class="diff-changed-words">|&nbsp;|&nbsp;|<span class="diff-added-chars"style="background-color: #dfd;">&nbsp;|</span></span> <br></td></tr>
<tr><td class="diff-changed-lines" >| AST_CAUSE_NO_ROUTE_DESTINATION | No route to destination |&nbsp;| 420 <span class="diff-deleted-words"style="color:#999;background-color:#fdd;text-decoration:line-through;">|</span> <span class="diff-added-words"style="background-color: #dfd;">|&nbsp;|</span> <br></td></tr>
<tr><td class="diff-changed-lines" >| AST_CAUSE_MISDIALLED_TRUNK_PREFIX | Misdialed trunk prefix | &nbsp; | &nbsp; <span class="diff-deleted-words"style="color:#999;background-color:#fdd;text-decoration:line-through;">|</span> <span class="diff-added-words"style="background-color: #dfd;">|&nbsp;|</span> <br></td></tr>
<tr><td class="diff-changed-lines" >| AST_CAUSE_CHANNEL_UNACCEPTABLE | Channel unacceptable <span class="diff-changed-words">|&nbsp;|&nbsp;|<span class="diff-added-chars"style="background-color: #dfd;">&nbsp;|</span></span> <br></td></tr>
<tr><td class="diff-changed-lines" >| AST_CAUSE_CALL_AWARDED_DELIVERED | Call awarded and being delivered in an established channel <span class="diff-changed-words">|&nbsp;|&nbsp;|<span class="diff-added-chars"style="background-color: #dfd;">&nbsp;|</span></span> <br></td></tr>
<tr><td class="diff-changed-lines" >| AST_CAUSE_PRE_EMPTED | Pre-empted | &nbsp; | &nbsp; <span class="diff-deleted-words"style="color:#999;background-color:#fdd;text-decoration:line-through;">|</span> <span class="diff-added-words"style="background-color: #dfd;">|&nbsp;|</span> <br></td></tr>
<tr><td class="diff-changed-lines" >| AST_CAUSE_NUMBER_PORTED_NOT_HERE | Number ported elsewhere | &nbsp; | &nbsp; <span class="diff-deleted-words"style="color:#999;background-color:#fdd;text-decoration:line-through;">|</span> <span class="diff-added-words"style="background-color: #dfd;">|&nbsp;|</span> <br></td></tr>
<tr><td class="diff-changed-lines" >| AST_CAUSE_NORMAL_CLEARING | Normal Clearing | OR2_CAUSE_NORMAL_CLEARING |&nbsp;| <span class="diff-added-words"style="background-color: #dfd;">gone, success |</span> <br></td></tr>
<tr><td class="diff-changed-lines" >| AST_CAUSE_USER_BUSY | User busy | OR2_CAUSE_BUSY_NUMBER | 486, 600 | <span class="diff-added-words"style="background-color: #dfd;">busy |</span> <br></td></tr>
<tr><td class="diff-changed-lines" >| AST_CAUSE_NO_USER_RESPONSE | No user responding |&nbsp;| 408 | <span class="diff-added-words"style="background-color: #dfd;">expired |</span> <br></td></tr>
<tr><td class="diff-changed-lines" >| AST_CAUSE_NO_ANSWER | User alerting, no answer | OR2_CAUSE_NO_ANSWER | 480, 483 <span class="diff-deleted-words"style="color:#999;background-color:#fdd;text-decoration:line-through;">|</span> <span class="diff-added-words"style="background-color: #dfd;">|&nbsp;|</span> <br></td></tr>
<tr><td class="diff-changed-lines" >| AST_CAUSE_SUBSCRIBER_ABSENT | Subscriber absent | OR2_CAUSE_UNALLOCATED_NUMBER <span class="diff-changed-words">|&nbsp;|<span class="diff-added-chars"style="background-color: #dfd;">&nbsp;|</span></span> <br></td></tr>
<tr><td class="diff-changed-lines" >| AST_CAUSE_CALL_REJECTED | Call Rejected |&nbsp;| 401, 403, 407, 603 | <span class="diff-added-words"style="background-color: #dfd;">cancel, decline |</span> <br></td></tr>
<tr><td class="diff-changed-lines" >| AST_CAUSE_NUMBER_CHANGED | Number changed |&nbsp;| 410 <span class="diff-deleted-words"style="color:#999;background-color:#fdd;text-decoration:line-through;">|</span> <span class="diff-added-words"style="background-color: #dfd;">|&nbsp;|</span> <br></td></tr>
<tr><td class="diff-changed-lines" >| AST_CAUSE_REDIRECTED_TO_NEW_DESTINATION | Redirected to new destination | &nbsp; | &nbsp; <span class="diff-deleted-words"style="color:#999;background-color:#fdd;text-decoration:line-through;">|</span> <span class="diff-added-words"style="background-color: #dfd;">|&nbsp;|</span> <br></td></tr>
<tr><td class="diff-changed-lines" >| AST_CAUSE_ANSWERED_ELSEWHERE | Answered elsewhere | &nbsp; | &nbsp; <span class="diff-deleted-words"style="color:#999;background-color:#fdd;text-decoration:line-through;">|</span> <span class="diff-added-words"style="background-color: #dfd;">|&nbsp;|</span> <br></td></tr>
<tr><td class="diff-changed-lines" >| AST_CAUSE_DESTINATION_OUT_OF_ORDER | Destination out of order | OR2_CAUSE_OUT_OF_ORDER | 502 <span class="diff-deleted-words"style="color:#999;background-color:#fdd;text-decoration:line-through;">|</span> <span class="diff-added-words"style="background-color: #dfd;">|&nbsp;|</span> <br></td></tr>
<tr><td class="diff-changed-lines" >| AST_CAUSE_INVALID_NUMBER_FORMAT | Invalid number format |&nbsp;| 484 <span class="diff-deleted-words"style="color:#999;background-color:#fdd;text-decoration:line-through;">|</span> <span class="diff-added-words"style="background-color: #dfd;">|&nbsp;|</span> <br></td></tr>
<tr><td class="diff-changed-lines" >| AST_CAUSE_FACILITY_REJECTED | Facility rejected |&nbsp;| 501 <span class="diff-deleted-words"style="color:#999;background-color:#fdd;text-decoration:line-through;">|</span> <span class="diff-added-words"style="background-color: #dfd;">|&nbsp;|</span> <br></td></tr>
<tr><td class="diff-changed-lines" >| AST_CAUSE_RESPONSE_TO_STATUS_ENQUIRY | Response to STATus ENQuiry <span class="diff-changed-words">|&nbsp;|&nbsp;|<span class="diff-added-chars"style="background-color: #dfd;">&nbsp;|</span></span> <br></td></tr>
<tr><td class="diff-changed-lines" >| AST_CAUSE_NORMAL_UNSPECIFIED | Normal, unspecified <span class="diff-changed-words">|&nbsp;|&nbsp;|<span class="diff-added-chars"style="background-color: #dfd;">&nbsp;|</span></span> <br></td></tr>
<tr><td class="diff-changed-lines" >| AST_CAUSE_NORMAL_CIRCUIT_CONGESTION | Circuit/channel congestion | OR2_CAUSE_NETWORK_CONGESTION |&nbsp;| <span class="diff-added-words"style="background-color: #dfd;">general-error |</span> <br></td></tr>
<tr><td class="diff-changed-lines" >| AST_CAUSE_NETWORK_OUT_OF_ORDER | Network out of order |&nbsp;| 500 <span class="diff-deleted-words"style="color:#999;background-color:#fdd;text-decoration:line-through;">|</span> <span class="diff-added-words"style="background-color: #dfd;">|&nbsp;|</span> <br></td></tr>
<tr><td class="diff-changed-lines" >| AST_CAUSE_NORMAL_TEMPORARY_FAILURE | Temporary failure |&nbsp;| 409 <span class="diff-deleted-words"style="color:#999;background-color:#fdd;text-decoration:line-through;">|</span> <span class="diff-added-words"style="background-color: #dfd;">|&nbsp;|</span> <br></td></tr>
<tr><td class="diff-changed-lines" >| AST_CAUSE_SWITCH_CONGESTION | Switching equipment congestion |&nbsp;| 5xx | <span class="diff-added-words"style="background-color: #dfd;">failed-application |</span> <br></td></tr>
<tr><td class="diff-changed-lines" >| AST_CAUSE_ACCESS_INFO_DISCARDED | Access information discarded <span class="diff-changed-words">|&nbsp;|&nbsp;|<span class="diff-added-chars"style="background-color: #dfd;">&nbsp;|</span></span> <br></td></tr>
<tr><td class="diff-changed-lines" >| AST_CAUSE_REQUESTED_CHAN_UNAVAIL | Requested channel not available <span class="diff-changed-words">|&nbsp;|&nbsp;|<span class="diff-added-chars"style="background-color: #dfd;">&nbsp;|</span></span> <br></td></tr>
<tr><td class="diff-changed-lines" >| AST_CAUSE_FACILITY_NOT_SUBSCRIBED | Facility not subscribed <span class="diff-changed-words">|&nbsp;|&nbsp;|<span class="diff-added-chars"style="background-color: #dfd;">&nbsp;|</span></span> <br></td></tr>
<tr><td class="diff-changed-lines" >| AST_CAUSE_OUTGOING_CALL_BARRED | Outgoing call barred <span class="diff-changed-words">|&nbsp;|&nbsp;|<span class="diff-added-chars"style="background-color: #dfd;">&nbsp;|</span></span> <br></td></tr>
<tr><td class="diff-changed-lines" >| AST_CAUSE_INCOMING_CALL_BARRED | Incoming call barred <span class="diff-changed-words">|&nbsp;|&nbsp;|<span class="diff-added-chars"style="background-color: #dfd;">&nbsp;|</span></span> <br></td></tr>
<tr><td class="diff-changed-lines" >| AST_CAUSE_BEARERCAPABILITY_NOTAUTH | Bearer capability not authorized <span class="diff-changed-words">|&nbsp;|&nbsp;|<span class="diff-added-chars"style="background-color: #dfd;">&nbsp;|</span></span> <br></td></tr>
<tr><td class="diff-changed-lines" >| AST_CAUSE_BEARERCAPABILITY_NOTAVAIL | Bearer capability not available |&nbsp;| 488, 606 | <span class="diff-added-words"style="background-color: #dfd;">incompatible-parameters, media-error, unsupported-applications |</span> <br></td></tr>
<tr><td class="diff-changed-lines" >| AST_CAUSE_BEARERCAPABILITY_NOTIMPL | Bearer capability not implemented |&nbsp;|&nbsp;| <span class="diff-added-words"style="background-color: #dfd;">&nbsp;|</span> <br></td></tr>
<tr><td class="diff-changed-lines" >| AST_CAUSE_CHAN_NOT_IMPLEMENTED | Channel not implemented <span class="diff-changed-words">|&nbsp;|&nbsp;|<span class="diff-added-chars"style="background-color: #dfd;">&nbsp;|</span></span> <br></td></tr>
<tr><td class="diff-changed-lines" >| AST_CAUSE_FACILITY_NOT_IMPLEMENTED | Facility not implemented |&nbsp;|&nbsp;| <span class="diff-added-words"style="background-color: #dfd;">unsupported-transports |</span> <br></td></tr>
<tr><td class="diff-changed-lines" >| AST_CAUSE_INVALID_CALL_REFERENCE | Invalid call reference value <span class="diff-changed-words">|&nbsp;|&nbsp;|<span class="diff-added-chars"style="background-color: #dfd;">&nbsp;|</span></span> <br></td></tr>
<tr><td class="diff-changed-lines" >| AST_CAUSE_INCOMPATIBLE_DESTINATION | Incompatible destination <span class="diff-changed-words">|&nbsp;|&nbsp;|<span class="diff-added-chars"style="background-color: #dfd;">&nbsp;|</span></span> <br></td></tr>
<tr><td class="diff-changed-lines" >| AST_CAUSE_INVALID_MSG_UNSPECIFIED | Invalid message unspecified <span class="diff-changed-words">|&nbsp;|&nbsp;|<span class="diff-added-chars"style="background-color: #dfd;">&nbsp;|</span></span> <br></td></tr>
<tr><td class="diff-changed-lines" >| AST_CAUSE_MANDATORY_IE_MISSING | Mandatory information element is missing <span class="diff-changed-words">|&nbsp;|&nbsp;|<span class="diff-added-chars"style="background-color: #dfd;">&nbsp;|</span></span> <br></td></tr>
<tr><td class="diff-changed-lines" >| AST_CAUSE_MESSAGE_TYPE_NONEXIST | Message type nonexist <span class="diff-changed-words">|&nbsp;|&nbsp;|<span class="diff-added-chars"style="background-color: #dfd;">&nbsp;|</span></span> <br></td></tr>
<tr><td class="diff-changed-lines" >| AST_CAUSE_WRONG_MESSAGE | Wrong message <span class="diff-changed-words">|&nbsp;|&nbsp;|<span class="diff-added-chars"style="background-color: #dfd;">&nbsp;|</span></span> <br></td></tr>
<tr><td class="diff-changed-lines" >| AST_CAUSE_IE_NONEXIST | Info. element nonexist or not implemented <span class="diff-changed-words">|&nbsp;|&nbsp;|<span class="diff-added-chars"style="background-color: #dfd;">&nbsp;|</span></span> <br></td></tr>
<tr><td class="diff-changed-lines" >| AST_CAUSE_INVALID_IE_CONTENTS | Invalid information element contents <span class="diff-changed-words">|&nbsp;|&nbsp;|<span class="diff-added-chars"style="background-color: #dfd;">&nbsp;|</span></span> <br></td></tr>
<tr><td class="diff-changed-lines" >| AST_CAUSE_WRONG_CALL_STATE | Message not compatible with call state <span class="diff-changed-words">|&nbsp;|&nbsp;|<span class="diff-added-chars"style="background-color: #dfd;">&nbsp;|</span></span> <br></td></tr>
<tr><td class="diff-changed-lines" >| AST_CAUSE_RECOVERY_ON_TIMER_EXPIRE | Recover on timer expiry |&nbsp;| 504 | <span class="diff-added-words"style="background-color: #dfd;">timeout |</span> <br></td></tr>
<tr><td class="diff-changed-lines" >| AST_CAUSE_MANDATORY_IE_LENGTH_ERROR | Mandatory IE length error <span class="diff-changed-words">|&nbsp;|&nbsp;|<span class="diff-added-chars"style="background-color: #dfd;">&nbsp;|</span></span> <br></td></tr>
<tr><td class="diff-changed-lines" >| AST_CAUSE_PROTOCOL_ERROR | Protocol error, unspecified |&nbsp;|&nbsp;| <span class="diff-added-words"style="background-color: #dfd;">failed-transport, security-error |</span> <br></td></tr>
<tr><td class="diff-changed-lines" >| AST_CAUSE_INTERWORKING | Interworking, unspecified |&nbsp;| 4xx, 505, 6xx | <span class="diff-added-words"style="background-color: #dfd;">connectivity-error |</span> <br></td></tr>
<tr><td class="diff-unchanged" > <br>h4. Notes <br></td></tr>
<tr><td class="diff-snipped" >...<br></td></tr>
</table>
</div> <h4>Full Content</h4>
<div class="notificationGreySide">
<h2><a name="HangupCauseMappings-AsteriskHangupCauseCodeMappings"></a>Asterisk Hangup Cause Code Mappings</h2>
<div class='table-wrap'>
<table class='confluenceTable'><tbody>
<tr>
<th class='confluenceTh'> Asterisk Value </th>
<th class='confluenceTh'> Q.931 Cause Text </th>
<th class='confluenceTh'> MFC/R2 </th>
<th class='confluenceTh'> SIP </th>
<th class='confluenceTh'> Motif </th>
</tr>
<tr>
<td class='confluenceTd'> AST_CAUSE_NOT_DEFINED </td>
<td class='confluenceTd'> Cause not defined </td>
<td class='confluenceTd'> OR2_CAUSE_UNSPECIFIED </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> </td>
</tr>
<tr>
<td class='confluenceTd'> AST_CAUSE_UNALLOCATED </td>
<td class='confluenceTd'> Unallocated (unassigned) number </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> 404, 485, 604 </td>
<td class='confluenceTd'> </td>
</tr>
<tr>
<td class='confluenceTd'> AST_CAUSE_NO_ROUTE_TRANSIT_NET </td>
<td class='confluenceTd'> No route to specified transmit network </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> </td>
</tr>
<tr>
<td class='confluenceTd'> AST_CAUSE_NO_ROUTE_DESTINATION </td>
<td class='confluenceTd'> No route to destination </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> 420 </td>
<td class='confluenceTd'> </td>
</tr>
<tr>
<td class='confluenceTd'> AST_CAUSE_MISDIALLED_TRUNK_PREFIX </td>
<td class='confluenceTd'> Misdialed trunk prefix </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> </td>
</tr>
<tr>
<td class='confluenceTd'> AST_CAUSE_CHANNEL_UNACCEPTABLE </td>
<td class='confluenceTd'> Channel unacceptable </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> </td>
</tr>
<tr>
<td class='confluenceTd'> AST_CAUSE_CALL_AWARDED_DELIVERED </td>
<td class='confluenceTd'> Call awarded and being delivered in an established channel </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> </td>
</tr>
<tr>
<td class='confluenceTd'> AST_CAUSE_PRE_EMPTED </td>
<td class='confluenceTd'> Pre-empted </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> </td>
</tr>
<tr>
<td class='confluenceTd'> AST_CAUSE_NUMBER_PORTED_NOT_HERE </td>
<td class='confluenceTd'> Number ported elsewhere </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> </td>
</tr>
<tr>
<td class='confluenceTd'> AST_CAUSE_NORMAL_CLEARING </td>
<td class='confluenceTd'> Normal Clearing </td>
<td class='confluenceTd'> OR2_CAUSE_NORMAL_CLEARING </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> gone, success </td>
</tr>
<tr>
<td class='confluenceTd'> AST_CAUSE_USER_BUSY </td>
<td class='confluenceTd'> User busy </td>
<td class='confluenceTd'> OR2_CAUSE_BUSY_NUMBER </td>
<td class='confluenceTd'> 486, 600 </td>
<td class='confluenceTd'> busy </td>
</tr>
<tr>
<td class='confluenceTd'> AST_CAUSE_NO_USER_RESPONSE </td>
<td class='confluenceTd'> No user responding </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> 408 </td>
<td class='confluenceTd'> expired </td>
</tr>
<tr>
<td class='confluenceTd'> AST_CAUSE_NO_ANSWER </td>
<td class='confluenceTd'> User alerting, no answer </td>
<td class='confluenceTd'> OR2_CAUSE_NO_ANSWER </td>
<td class='confluenceTd'> 480, 483 </td>
<td class='confluenceTd'> </td>
</tr>
<tr>
<td class='confluenceTd'> AST_CAUSE_SUBSCRIBER_ABSENT </td>
<td class='confluenceTd'> Subscriber absent </td>
<td class='confluenceTd'> OR2_CAUSE_UNALLOCATED_NUMBER </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> </td>
</tr>
<tr>
<td class='confluenceTd'> AST_CAUSE_CALL_REJECTED </td>
<td class='confluenceTd'> Call Rejected </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> 401, 403, 407, 603 </td>
<td class='confluenceTd'> cancel, decline </td>
</tr>
<tr>
<td class='confluenceTd'> AST_CAUSE_NUMBER_CHANGED </td>
<td class='confluenceTd'> Number changed </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> 410 </td>
<td class='confluenceTd'> </td>
</tr>
<tr>
<td class='confluenceTd'> AST_CAUSE_REDIRECTED_TO_NEW_DESTINATION </td>
<td class='confluenceTd'> Redirected to new destination </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> </td>
</tr>
<tr>
<td class='confluenceTd'> AST_CAUSE_ANSWERED_ELSEWHERE </td>
<td class='confluenceTd'> Answered elsewhere </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> </td>
</tr>
<tr>
<td class='confluenceTd'> AST_CAUSE_DESTINATION_OUT_OF_ORDER </td>
<td class='confluenceTd'> Destination out of order </td>
<td class='confluenceTd'> OR2_CAUSE_OUT_OF_ORDER </td>
<td class='confluenceTd'> 502 </td>
<td class='confluenceTd'> </td>
</tr>
<tr>
<td class='confluenceTd'> AST_CAUSE_INVALID_NUMBER_FORMAT </td>
<td class='confluenceTd'> Invalid number format </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> 484 </td>
<td class='confluenceTd'> </td>
</tr>
<tr>
<td class='confluenceTd'> AST_CAUSE_FACILITY_REJECTED </td>
<td class='confluenceTd'> Facility rejected </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> 501 </td>
<td class='confluenceTd'> </td>
</tr>
<tr>
<td class='confluenceTd'> AST_CAUSE_RESPONSE_TO_STATUS_ENQUIRY </td>
<td class='confluenceTd'> Response to STATus ENQuiry </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> </td>
</tr>
<tr>
<td class='confluenceTd'> AST_CAUSE_NORMAL_UNSPECIFIED </td>
<td class='confluenceTd'> Normal, unspecified </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> </td>
</tr>
<tr>
<td class='confluenceTd'> AST_CAUSE_NORMAL_CIRCUIT_CONGESTION </td>
<td class='confluenceTd'> Circuit/channel congestion </td>
<td class='confluenceTd'> OR2_CAUSE_NETWORK_CONGESTION </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> general-error </td>
</tr>
<tr>
<td class='confluenceTd'> AST_CAUSE_NETWORK_OUT_OF_ORDER </td>
<td class='confluenceTd'> Network out of order </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> 500 </td>
<td class='confluenceTd'> </td>
</tr>
<tr>
<td class='confluenceTd'> AST_CAUSE_NORMAL_TEMPORARY_FAILURE </td>
<td class='confluenceTd'> Temporary failure </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> 409 </td>
<td class='confluenceTd'> </td>
</tr>
<tr>
<td class='confluenceTd'> AST_CAUSE_SWITCH_CONGESTION </td>
<td class='confluenceTd'> Switching equipment congestion </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> 5xx </td>
<td class='confluenceTd'> failed-application </td>
</tr>
<tr>
<td class='confluenceTd'> AST_CAUSE_ACCESS_INFO_DISCARDED </td>
<td class='confluenceTd'> Access information discarded </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> </td>
</tr>
<tr>
<td class='confluenceTd'> AST_CAUSE_REQUESTED_CHAN_UNAVAIL </td>
<td class='confluenceTd'> Requested channel not available </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> </td>
</tr>
<tr>
<td class='confluenceTd'> AST_CAUSE_FACILITY_NOT_SUBSCRIBED </td>
<td class='confluenceTd'> Facility not subscribed </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> </td>
</tr>
<tr>
<td class='confluenceTd'> AST_CAUSE_OUTGOING_CALL_BARRED </td>
<td class='confluenceTd'> Outgoing call barred </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> </td>
</tr>
<tr>
<td class='confluenceTd'> AST_CAUSE_INCOMING_CALL_BARRED </td>
<td class='confluenceTd'> Incoming call barred </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> </td>
</tr>
<tr>
<td class='confluenceTd'> AST_CAUSE_BEARERCAPABILITY_NOTAUTH </td>
<td class='confluenceTd'> Bearer capability not authorized </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> </td>
</tr>
<tr>
<td class='confluenceTd'> AST_CAUSE_BEARERCAPABILITY_NOTAVAIL </td>
<td class='confluenceTd'> Bearer capability not available </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> 488, 606 </td>
<td class='confluenceTd'> incompatible-parameters, media-error, unsupported-applications </td>
</tr>
<tr>
<td class='confluenceTd'> AST_CAUSE_BEARERCAPABILITY_NOTIMPL </td>
<td class='confluenceTd'> Bearer capability not implemented </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> </td>
</tr>
<tr>
<td class='confluenceTd'> AST_CAUSE_CHAN_NOT_IMPLEMENTED </td>
<td class='confluenceTd'> Channel not implemented </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> </td>
</tr>
<tr>
<td class='confluenceTd'> AST_CAUSE_FACILITY_NOT_IMPLEMENTED </td>
<td class='confluenceTd'> Facility not implemented </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> unsupported-transports </td>
</tr>
<tr>
<td class='confluenceTd'> AST_CAUSE_INVALID_CALL_REFERENCE </td>
<td class='confluenceTd'> Invalid call reference value </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> </td>
</tr>
<tr>
<td class='confluenceTd'> AST_CAUSE_INCOMPATIBLE_DESTINATION </td>
<td class='confluenceTd'> Incompatible destination </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> </td>
</tr>
<tr>
<td class='confluenceTd'> AST_CAUSE_INVALID_MSG_UNSPECIFIED </td>
<td class='confluenceTd'> Invalid message unspecified </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> </td>
</tr>
<tr>
<td class='confluenceTd'> AST_CAUSE_MANDATORY_IE_MISSING </td>
<td class='confluenceTd'> Mandatory information element is missing </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> </td>
</tr>
<tr>
<td class='confluenceTd'> AST_CAUSE_MESSAGE_TYPE_NONEXIST </td>
<td class='confluenceTd'> Message type nonexist </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> </td>
</tr>
<tr>
<td class='confluenceTd'> AST_CAUSE_WRONG_MESSAGE </td>
<td class='confluenceTd'> Wrong message </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> </td>
</tr>
<tr>
<td class='confluenceTd'> AST_CAUSE_IE_NONEXIST </td>
<td class='confluenceTd'> Info. element nonexist or not implemented </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> </td>
</tr>
<tr>
<td class='confluenceTd'> AST_CAUSE_INVALID_IE_CONTENTS </td>
<td class='confluenceTd'> Invalid information element contents </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> </td>
</tr>
<tr>
<td class='confluenceTd'> AST_CAUSE_WRONG_CALL_STATE </td>
<td class='confluenceTd'> Message not compatible with call state </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> </td>
</tr>
<tr>
<td class='confluenceTd'> AST_CAUSE_RECOVERY_ON_TIMER_EXPIRE </td>
<td class='confluenceTd'> Recover on timer expiry </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> 504 </td>
<td class='confluenceTd'> timeout </td>
</tr>
<tr>
<td class='confluenceTd'> AST_CAUSE_MANDATORY_IE_LENGTH_ERROR </td>
<td class='confluenceTd'> Mandatory IE length error </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> </td>
</tr>
<tr>
<td class='confluenceTd'> AST_CAUSE_PROTOCOL_ERROR </td>
<td class='confluenceTd'> Protocol error, unspecified </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> failed-transport, security-error </td>
</tr>
<tr>
<td class='confluenceTd'> AST_CAUSE_INTERWORKING </td>
<td class='confluenceTd'> Interworking, unspecified </td>
<td class='confluenceTd'> </td>
<td class='confluenceTd'> 4xx, 505, 6xx </td>
<td class='confluenceTd'> connectivity-error </td>
</tr>
</tbody></table>
</div>
<h4><a name="HangupCauseMappings-Notes"></a>Notes</h4>
<ul>
<li>The hangup cause AST_CAUSE_NOT_DEFINED is not actually a Q.931 cause code, and is used to capture hangup causes that do not map cleanly to a Q.931 cause code.</li>
<li>IAX2, ISDN, and SS7 are all subsets of the cause codes listed above.</li>
<li>Analog will always have a hangup cause code of AST_CAUSE_NORMAL_CLEARING.</li>
<li>SIP causes of 4xx, 5xx, and 6xx correspond to all 400, 500, and 600 response codes not explicitly listed in the table above.</li>
</ul>
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