編號
| 原因
|
|
|
1
| Unassiagned number(未分配的號碼（空號）)
|
|
|
3
| No route to destination(無至目的地的路由)
|
|
|
6
| Channel unacceptable(不可接受的信道)
|
|
|
16
| Normal clearing(正常清除)
|
|
|
17
| User busy(用戶忙)
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|
|
18
| No user responding(無用戶響應)
|
|
|
19
| User alerting,no answer(已有用戶提醒，但無應答)
|
|
|
21
| Call rejected(呼叫拒絕)
|
|
|
22
| Number changed(號碼改變)
|
|
|
26
| Non selected user clearing(清除未選擇的用戶)
|
|
|
27
| Destination out of order(終點故障)
|
|
|
28
| Incomplete number(無效號碼格式（不完全的號碼）)
|
|
|
29
| Facility rejected(設施被拒絕)
|
|
|
30
| Response to status enquiry(對狀態(tài)詢問的響應)
|
|
|
31
| Normal,unspecified(正常，未規(guī)定)
|
|
|
34
| No circuit/channel available(無電路/信道可用)
|
|
|
38
| Network out of order(網絡故障)
|
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|
41
| Temporary failure(臨時故障)
|
|
|
|
|
|
42
| Switching equipment congestion(交換設備擁塞)
|
|
|
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|
|
43
| Access information discarded(接入信息被丟棄)
|
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|
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|
|
44
| Requested circuit/channel not available(請求的電路/信道不可用)
|
|
|
|
47
| Resources unavailable,unspecified(資源不可用，未規(guī)定)
|
|
|
|
|
|
49
| Quality of service unavailable(服務質量不可用)
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|
50
| Requested facility not subscribed(未預訂所請求的設施)
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|
55
| Incoming calls barred within the CUG
|
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|
57
| Bearer capability not authorized(承載能力未認可)
|
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|
58
| Bearer capability not presently available(承載能力目前不可用)
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