編號(hào)
| 原因
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|
|
1
| Unassiagned number(未分配的號(hào)碼（空號(hào)）)
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3
| No route to destination(無(wú)至目的地的路由)
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6
| Channel unacceptable(不可接受的信道)
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16
| Normal clearing(正常清除)
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17
| User busy(用戶忙)
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18
| No user responding(無(wú)用戶響應(yīng))
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19
| User alerting,no answer(已有用戶提醒，但無(wú)應(yīng)答)
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21
| Call rejected(呼叫拒絕)
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22
| Number changed(號(hào)碼改變)
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26
| Non selected user clearing(清除未選擇的用戶)
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27
| Destination out of order(終點(diǎn)故障)
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28
| Incomplete number(無(wú)效號(hào)碼格式（不完全的號(hào)碼）)
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29
| Facility rejected(設(shè)施被拒絕)
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30
| Response to status enquiry(對(duì)狀態(tài)詢問(wèn)的響應(yīng))
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31
| Normal,unspecified(正常，未規(guī)定)
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34
| No circuit/channel available(無(wú)電路/信道可用)
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38
| Network out of order(網(wǎng)絡(luò)故障)
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41
| Temporary failure(臨時(shí)故障)
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42
| Switching equipment congestion(交換設(shè)備擁塞)
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43
| Access information discarded(接入信息被丟棄)
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44
| Requested circuit/channel not available(請(qǐng)求的電路/信道不可用)
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47
| Resources unavailable,unspecified(資源不可用，未規(guī)定)
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49
| Quality of service unavailable(服務(wù)質(zhì)量不可用)
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50
| Requested facility not subscribed(未預(yù)訂所請(qǐng)求的設(shè)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(rèn)可)
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58
| Bearer capability not presently available(承載能力目前不可用)
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