Call Termination Cause Codes

Call Termination Cause Codes
Last Updated September 18, 2019
Several
Unified Communications Monitor
 reports identify the Call Setup Failure Code, which the call server returns when a call fails during the setup phase. The code indicates the type of failure. For more information, see the list of call termination cause codes on the Cisco website.
Unified Communications Monitor
 uses the following call termination cause codes.
 
 
 
Code
Description
0
No error.
1
Unallocated (unassigned) number
2
No route to specified transit network
3
No route to destination
4
Send special information tone
5
Misdialed trunk prefix
6
Channel unacceptable
7
Call awarded and being delivered in an established channel
8
Preemption
9
Preemption -- circuit reserved for reuse
16
Normal call clearing
17
User busy
18
No user responding
19
No answer from user
20
Subscriber absent
21
Call rejected
22
Number changed
26
Non-selected user clearing
27
Destination out of order
28
Invalid number format (address incomplete)
29
Facility rejected
30
Response to STATUS ENQUIRY
31
Normal, unspecified
34
No circuit/channel available
38
Network out of order
39
Permanent frame mode connection out of service
40
Permanent frame mode connection operational
41
Temporary failure
42
Switching equipment congestion
43
Access information discarded
44
Requested circuit/channel not available
46
Precedence call blocked
47
Resource unavailable, unspecified
49
Quality of Service not available
50
Requested facility not subscribed
53
Service operation violated
54
Incoming calls barred
55
Incoming call barred within Closed User Group (CUG)
57
Bearer capability not authorized
58
Bearer capability not presently available
62
Inconsistency in designated outgoing access information and subscriber class
63
Service or option not available, unspecified
65
Bearer capability not implemented
66
Channel type not implemented
69
Requested facility not implemented
70
Only restricted digital information bearer capability is available
79
Service or option not implemented, unspecified
81
Invalid call reference value
82
Identified channel does not exist
83
A suspended call exists, but this call identity does not
84
Call identity in use
85
No call suspended
86
Call having the requested call identity has been cleared
87
User not member of Closed User Group (CUG)
88
Incompatible destination
90
Destination number missing and DC not subscribed
91
Invalid transit network selection
95
Invalid message, unspecified
96
Mandatory information element is missing
97
Message type nonexistent or not implemented
98
Message is not compatible with the call state, or the message type is nonexistent or not implemented
99
An information element or parameter does not exist or is not implemented
100
Invalid information element contents
101
The message is not compatible with the call state
102
Call terminated when time expired; a recover routine executed to recover from the error
103
Parameter nonexistent or not implemented -- passed on
110
Message with unrecognized parameter discarded
111
Protocol error, unspecified
122
Precedence Level Exceeded
123
Device not Preemptable
125
Out of bandwidth (Cisco specific)
126
Call split (Cisco specific)
127
Interworking, unspecified
129
Precedence out of bandwidth
131
Call Control Discovery PSTN Failover (Cisco specific)

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