ID | Definition |
|---|
| Q.931 Standard (0-127) |
0 | INVALID DISCONNECT REASON |
1 | UNALLOCATED NUMBER
(Because the never generates this internally, this code originates at a switch downstream from this .) |
2 | NO ROUTE TO SPECIFIED NETWORK |
3 | NO ROUTE TO DESTINATION [Sonus codes 138 and 139 are mapped to this ID. This mapping is performed before ISUP Release Message is sent. The "underlying" Sonus code is placed into accounting record.] (The may release a call with this cause value if:- No routes are configured on PSX for this destination.
- The PSX loses connectivity to Oracle DB server and hence is unable to perform routing)
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4 | SEND SPECIAL INFO TONE |
5 | MISDIALED TRUNK PREFIX |
6 | CHANNEL UNACCEPTABLE |
7 | CALL AWARDED |
8 | PREEMPTION |
9 | PREEMPTION - CIRCUIT RESERVED |
12 | VALUE NOT CODED |
16 | NORMAL ROUTE CLEARING
[ISUP codes 12, 32, and 36 are mapped to this ID] |
17 | USER BUSY |
18 | NO USER RESPONDING (The SBC may release a call with this cause value if: - The CAS SSP that is executed on an egress call does not have WAIT ANSWER configured as the last step in the sequence. This token is typically configured to await an off hook at the Far-End. In this case, this token is performed by default with a 30 second timeout. If this timer expires then this code is returned.
- ISDN User Part (ISUP) for an Egress Call releases a call because of an Address Complete Message (ACM) timeout from the SGX. In this case, the SGX forwards Q.931 code 31 (NORMAL UNSPECIFIED) to the PSTN switch.
- In general, SBC times out waiting for an ISUP ACM or ALERTING or CON message after sending Initial Address Message (IAM) SETUP)
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19 | NO ANSWER FROM USER (SBC may release a call with this cause value if ISUP for an egress call releases call because of ANM timeout from SGX. In this case, the SGX forwards Q.931 code 102 (RECOVERY ON TIMER EXPIRY) to PSTN switch) |
20 | SUBSCRIBER ABSENT |
21 | CALL REJECTED |
22 | NUMBER CHANGED |
23 | UNALLOCATED DESTINATION NUMBER |
24 | UNKNOWN BUSINESS GROUP |
25 | EXCHANGE ROUTING ERROR |
26 | MISROUTED CALL TO PORTED NUMBER
(The SBC may release a call with this cause value if: - An LNP translation produces a subscriber that is in a state of transition
- An LNP translation produces a subscriber that is in a state of ported out
This could occur either when the PSX initiates the LNP query to the SCP database, or when the PSX receives a policy request where the translation has been performed by a downstream switch.)
|
27 | DESTINATION OUT OF ORDER |
28 | INVALID NUMBER FORMAT (The SBC may release a call with this cause value if LNP translation is performed by a downstream switch and General Address Parameter digits sent to the PSX are in an incorrect format, that is, either too many digits or the number type is incorrect.) |
29 | FACILITY REJECTED |
30 | RESPONSE TO STATUS ENQUIRY (ISUP specific and thus not applicable to ISDN, H323, or SIP calls.) |
31 | NORMAL UNSPECIFIED [Sonus codes 133, 141, 144, and 145 are mapped to this ID. Mapping is performed before the ISUP Release Message is sent out. The "underlying" Sonus code is placed into the accounting record.] [ISUP codes 6, 7, 24, and 25 are mapped to this ID] (The SBC may release a call with this cause value if: - ISUP circuits were reset via CLI command, causing all calls on those circuits to be brought down.
- ISDN circuits were reset via CLI command, causing all calls on those circuits to be brought down.
- ISDN Channels were restarted by the Far-End switch bringing down all calls on those circuits.
- CAS circuits were reset via CLI command, causing all calls on those circuits to be brought down.
- Any other CLI command, such as a command to take a T1 or CNS out of service, causes all calls on those circuits to go down.
- An ISUP Continuity Test timed out.
- ISUP circuits were reset by the Far-End switch.
- Calls were cleared by the SGX because of protocol time-outs.)
|
32 | VALUE NOT CODED |
34 | NO CIRCUIT AVAILABLE [Sonus codes 128, 140, and 142 are mapped to this ID. This mapping is performed before the ISUP Release Message is sent out. The "underlying" Sonus code is placed into the accounting record.] The may release a call with this cause value if:- The attempts to initially route the call but none of the routes has any available circuits.
- attempts to reroute call ("crankback"), but is out of routes or out of routes with available circuits. An attempt to reroute call may have various causes. When this is the result of an attempted reroute, the cause value triggering the reroute is placed into accounting record.
- A software programming error occurred.
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35 | VALUE NOT CODED |
36 | VALUE NOT CODED |
38 | NETWORK OUT OF ORDER The may release a call with this cause value if:- Gateway-to-Gateway Signaling Link to Far-End is lost due to network problems or CLI command. In either event, all calls to that are cleared with this disconnect reason.
- Gateway-to-Gateway Signaling Link to Far-End went down and then back up. Afterwards, the s audit all calls between them. Any mismatched calls are brought down with this disconnect reason.
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39 | PERM FM CONNECTION OOS |
40 | PERM FM CONNECTION OPERATIONAL |
41 | TEMPORARY FAILURE [Sonus codes 131, 132, and 136 are mapped to this ID. This mapping is performed before the ISUP Release Message is sent out. The "underlying" Sonus code is placed into the accounting record.] The may release a call with this cause value if:- Communication between and PSX is broken and Policy Requests from the to the PSX time out.
- A Policy Request issued from the to the PSX was rejected by the PSX because of corrupted data in the packet - an indication of possible network problems.
- A software programming error occurred.
- ISUP calls were brought down as a result of corrective action that was performed following a Circuit Query with a Far-End PSTN Switch.
- Connectivity to SS7 Gateway is lost and all active SS7 Calls in the are brought down.
- The received a UCIC ISUP Message from a Far-End PSTN Switch that contained a CIC of an active call.
- Call admission on is suspended due to CNS Failure, switchover, standby card synchronization, no NTP time, or other issues. All new call admission requests from other s over Gateway-to-Gateway signaling are released to originating gateway with this code.
- Catastrophic failure such as a CNS failure or a PNS failure occurs on a and all affected calls are released. The releases these calls back to the originating gateway over the gateway-to-gateway signaling link with this code.
- T8 Timer expires in ISUP. This timer expires if does not receive a COT message from previous switch within T8 Timer duration, when the IAM indicates that a COT is being performed.
In general when is not getting responses from PSX, this indicates IP network congestion or PSX overload. Both are transient conditions that will resolve themselves, hence the use of this code to indicate a temporary failure situation.
|
42 | SWITCHINGEQUIP CONGESTION |
43 | ACCESS INFORMATION DISCARDED
(The may release a call with this cause value if this code is returned before an ANM/CONNECT message.) |
44 | REQUESTED CIRCUIT NOT AVAILABLE |
45 | ANSI PREEMPTION |
46 | PRECEDENCE CALL BLOCKED |
47 | RESOURCE UNAVAILABLE UNSPECIFIED[ISUP codes 39, 40, and 45 are mapped to this ID.] |
49 | QUALITY OF SERVICE UNAVAILABLE |
50 | REQUESTED FACILITY NOT SUBSCRIBED |
51 | CALL TYPE INCOMPATIBLE WITH SEREVICE |
53 | OUTGOING CALL BARRED CUG |
54 | CALL BLOCKED GROUP RESTRICTIONS |
55 | INCOMING CALL BARRED CUG
( may release a call with this cause value if this code is returned before an ANM/CONNECT message. CUG is CLOSED USER GROUP.) |
57 | BEARER CAPABILITY NOT AUTHORIZED |
58 | BEARER CAPABILITY PRESENTLY NOT AVAILABLE |
62 | INCONSISTENT OUTGOING SUBSCRIBER CLASS |
63 | SERVICE OR OPTION NOT AVAILABLE UNSPECIFIED [Sonus code 137 is mapped to this ID. This mapping is performed before the ISUP Release Message is sent out. The "underlying" Sonus code is placed into the accounting record.] [ISUP codes 49, 51, and 54 are mapped to this ID.] |
65 | BEARER CAPABILITY NOT IMPLEMENTED |
66 | CHANNEL TYPE NOT IMPLEMENTED |
69 | REQUESTED FACILITY NOT IMPLEMENTED |
70 | ONLY RESTRICTED DIGITAL INFO BEARER CAPABILITY AVAILABLE |
79 | SERVICE OR OPTION NOT IMPLEMENTED UNSPECIFIED[ISUP code 66 is mapped to this ID.] |
80 | VALUE NOT CODED |
81 | INVALID CALL REFERENCE |
82 | CHANNEL DOES NOT EXIST |
83 | SUSPENDED CALL NO IDENTITY |
84 | CALL IDENTITY IN USE |
85 | NO CALL SUSPENDED |
86 | CALL IDENTITY CLEARED |
87 | NOT MEMBER OF CUG ( may release a call with this cause value if this code is returned before an ANM/CONNECT message. CUG is CLOSED USER GROUP.) |
88 | INCOMPATIBLE DESTINATION |
90 | NON-EXISTENT CUG |
91 | INVALID NETWORK SELECTION |
95 | INVALID MESSAGE UNSPECIFIED[ISUP codes 81, 82, 83, 84, 85, and 86 are mapped to this ID.] |
96 | MANDATORY INFORMATION ELEMENT MISSING |
97 | MESSAGE TYPE NON-EXISTENT OR NOT IMPLEMENTED |
98 | MSG TYPE NC NE OR NI(NC is NOT COMPATIBLE. NE is NON EXISTING. NI is NOT IMPLEMENTED. This code typically suggests an incompatibility in the network.) |
99 | IE NOT IMPLEMENTED |
100 | INVALID INFORMATION ELEMENT CONTENT |
101 | MSG NOT COMPATIBLE WITH STATE |
102 | RECOVERY ON TIMER EXPIRY(The may release a call with this cause value if the internal Call Establishment Timer expires. This interval is 5 minutes.) |
103 | PARAMETER NOT IMPLEMENTED |
110 | UNRECOGNIZED PARAMETER |
111 | PROTOCOL ERROR UNSPECIFIED[ISUP codes 96, 98, 100, and 101 are mapped to this ID.] [nttfcc ISUP code 102 is mapped to this ID.] The may release a call with this cause value if:- The PSX could not find routes to a destination because they were filtered out due to protocol conformance errors, according to the conventions cited in GR-317/394.
- A CAS Call Establishment error that is not configured to be handled in the SSP occurs, causing CAS to release the call with this code.
- Another error in a CAS SSP/SCP configuration that is being used by a call causes the call to be released with this code.
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127 | INTERWORKING UNSPECIFIED The may release a call with this cause value if:- Incoming CAS call goes on-hook while being established and event not configured on SSP.
- Incoming CAS call goes on-hook after being established.
- Outgoing CAS call goes on-hook after being established.
|
| Sonus Extensions above 127: |
128 | RESOURCES ALLOCATION FAILURE[This Sonus code is mapped to Q.931 ID 34.] (The may release a call with this cause value if:- No PSTN circuits are available to hunt.
- The DSP call resources are exhausted.
- Call admissions to system are suspended due to event such as switchover, CNS switchover, etc.
- The memory resources are exhausted.)
|
129 | CHANNEL COLLISION BACKOFF[This Sonus code is mapped to Q.931 ID 31.] (The may release a call with this cause value if a call collision occurs on the selected egress circuit, resulting in backoff and reattempt of the call.) |
130 | INSUFFICIENT DESTINATION RESOURCES [This code is mapped to Q.931 ID 34.]( may release a call with this cause value if insufficient resources are available on destination gateway and rerouting is invoked to reattempt the call via a different route on the originating gateway.) |
131 | RESOURCE FAILURE [This code is mapped to Q.931 ID 41.]( may release a call with this cause value if a resource that was being used by the call fails and is no longer available. Taking a span out of service could cause this code.) |
132 | MODULE FAILURE [This code is mapped to Q.931 ID 41.]( may release a call with this cause value if a catastrophic failure causes bulk teardown of all calls on the module, and those calls are disconnected. A module failure, a module switchover, a span failure, an SGX that is temporarily placed into "PAUSED" state while calls are active, a -to-SGX IP network failure resulting in loss of connectivity, etc. could cause this code.) |
133 | MEDIA GATEWAY SERVICE GROUP EGRESS DISCONNECT [This code is mapped to Q.931 ID 31.](The may release a call with this cause value if an egress disconnect is indicated due to receipt of the MGCP DLCX message.) |
134 | CONTINUITY CHECK FAILED, BACKOFF [This code is mapped to Q.931 ID 31.](The SBC may release a call with this cause value if a continuity check on an egress circuit fails, resulting in backoff and reattempt of the call on a different circuit.) |
135 | COLLISION REATTEMPT EXHAUSTED [This code is mapped to Q.931 ID 41.](The may release a call with this cause value if two consecutive collisions occur on the egress ISUP/ISDN/CAS circuit. For PSTN-PSTN calls, after one reattempt, or two collisions, the call is released with this code. For PSTN-IP-IP-PSTN calls, the call is reattempted using the next route in the list.) |
136 | CONTINUITY REATTEMPT EXHAUSTED [This code is mapped to Q.931 ID 31.](The may release a call with this cause value if two consecutive continuity tests on the selected egress circuits fail. After one reattempt, the call is released with this code.) |
137 | NO ROUTE FOR BEARER CAPABILITY [This code is mapped to Q.931 ID 63.]( may release a call with this cause value if PSX routing lookup fails because no route with the Bearer Capability required for this call exists on PSX.) |
138 | NO ROUTE SIGNALING [This Sonus code is mapped to Q.931 ID 3.] ( may release call with this cause value if PSX routing lookup fails because no route with signaling required for this call exists on PSX.) |
139 | NO ROUTE DIRECTION [This code is mapped to Q.931 ID 3.]( may release call with this cause value if PSX routing lookup fails because no route with direction required for this call exists on PSX.) |
140 | CIRCUIT ENDPOINT RESOURCE ALLOCATION FAILURE [This code is mapped to Q.931 ID 34.](The may release a call with this cause value if the circuit is released after being selected. Events such as a NIF being placed out of service or a port going into alarm may cause this code.) |
141 | DISCONNECT WITH NEW DESTINATION [This code is mapped to Q.931 ID 31.](The SBC may release a call with this cause value if the egress circuit is released while the ingress call is rerouted to a new destination, or the call is transferred.) |
142 | AUTOMATIC CONGESTION CONTROL PROCEDURE [This code is mapped to Q.931 ID 34.](The may release a call with this cause value if Automatic Congestion Control (ACC) is configured, insufficient resources are detected at the far end, and the call is cancelled. When ACC is active, calls may be rerouted or cancelled, depending on:- current congestion level
- Alternate Route versus Direct Route requirements
- Percentage of calls to be rerouted versus cancelled
This release code indicates that this call was cancelled, rather than rerouted.)
|
143 | ACC ALTERNATE ROUTE [This code is mapped to Q.931 ID 31.](The may release a call with this cause value if Automatic Congestion Control (ACC) is configured, insufficient resources are detected at the far end, and the call is rerouted. When ACC is active, calls may be rerouted or cancelled, depending on:- current congestion level
- Alternate Route versus Direct Route requirements
- Percentage of calls to be rerouted versus cancelled
This release code indicates that this call was rerouted, or reattempted on an alternate route.)
|
144 | PACKET LOSS EXCEEDS THRESHOLD [This code is mapped to Q.931 ID 31.](The may release a call with this cause value if RTCP disconnects the call because the measured packet loss within a specified timeframe exceeds a configured threshold. This timeframe, the RTCP Sender Report interval, and the threshold value are specified in the PSX Packet Service Profile.) |
145 | NO RTP OR RTCP PACKETS [This code is mapped to Q.931 ID 31.](The may release a call with this cause value if RTCP disconnects the call because no RTP or RTCP packets were received within the specified timeframe. This timeframe is two RTCP Sender Report intervals, as specified in the PSX Packet Service Profile. This absence of packets for this timeframe is "loss of RTP bearer channel".) |
146 | HOP COUNTER EXHAUSTED (The may release a call with this cause value if the call was terminated because the ISUP hop counter was exhausted; not applicable to ISDN, H323, or SIP calls.) |
147 | CONVERSION FAILURE (The may release a call with this cause value because the Gateway to Gateway Signaling protocol could not convert an MCS message.) |
148 | CPC_DISC_CONGESTION_REROUTE_NOT_PERMITTED (The may release calls that utilize the BT-IUP service with this cause value.) |
149 | CPC_DISC_ _INCOMPATIBLE_DESTINATION(The may release a call with this cause code if the version running on the destination Gateway is not compatible with the version running on the originating Gateway.) |
150 | CPC_DISC_NO_PSX_ROUTES (The may release a call with this cause code if a policy response from the PSX that contains routes is received with no routes.) |
151 | CPC_DISC_SETUP_REQ_TIMER_EXPIRY (The may release a call with this cause code if there is a timer expiry on a setup request, for example no response by the peer to a SIP INVITE message on the egress call leg. This reason code is in the default crankback profile, and will cause crankback on the next route returned by PSX for the destination.) |
152 | CPC_DISC_GW_CONGESTED (The remote may release a gateway-to-gateway call with this cause code to indicate that gateway is congested. The local will then skip any additional routes in the route list for that call that go to the congested gateway.) |
153 | CPC_DISC_GLARE_OCCURRED (The may release a call with this cause code when GLARE prevents a call from setting up. Hence this cause code will populate the Call Disconnect Reason Field in an ATTEMPT record.) |
154 | CPC_DISC_NO_TERM_CIT_RCVD (The may release a call with this cause code if the "Terminating carrier information" or "Terminating CA" parameter in SIP message is not received before Answer state. Based on IP signaling control flag "Disconnect If Neither Terminating CA Nor CIC Received.") |
155 | CPC_DISC_BUSY_EVERYWHERE (The may release a High Probability of Completion (HPC) call with this cause code to indicate that all routes have failed.) |
156 | CPC_DISC_REASON_UNKNOWN_RESOURCE_PRIORITY (The may release a High Probability of Completion (HPC) call with this cause code when a bad resource priority header (RPH) is recieved in a SIP message.) |
157 | CPC_DISC_REASON_BAD_EXTENSION (The may release a call with this cause code when the required SIP Extension is not supported.) |
158 | CPC_DISC_REASON_QUEUE_TIMEOUT (The may release a queued High Probability of Completion (HPC) call with this cause code if a queue timeout has occurred.) |
159 | CPC_DISC_REASON_FORBIDDEN (The may release a call with this cause code if High Probability of Completion HPC treatment cannot be applied.) |
161 | CPC_DISC_REASON_QUEUEING_IMPOSSIBLE (The may release a High Probability of Completion (HPC) call with this cause code because there are no available circuits and the call cannot be queued because queuing limits will be exceeded, or because queuing is not enabled.) |
| 166 | CPC_DISC_PDD_TIMER_EXPIRED (The may release a call with this cause code if disconnect happens due to PDD Timer expiry in the ATTEMPT Record.) |
| 176 | CPC_DISC_TG_AUTH_FAIL (The may release the call with this error code, if the request with credentials is rejected with non 401/407. This cause code is mapped to SIP error cause code of 403. This cause code can be configured to map to any SIP error cause.) |
| 177 | CPC_DISC_TG_AUTH_FAIL_401_407 (If the request with credentials is rejected with non 401/407, the call is rejected with new internal cause code. This cause code can be mapped to any SIP error cause code. By default, it is mapped to SIP cause code 403. This cause code can be configured to map to any SIP error cause.) |