无线网络优化中Disconnect Cause Codes原因.docx
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无线网络优化中Disconnect Cause Codes原因.docx
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无线网络优化中DisconnectCauseCodes原因
DisconnectCauseCodes
ThefollowingisacompletelistofCauseCodesbasedontheQ.931specification.Notallofthesecodesmaybeapplicableinallsituations.
Table50 DisconnectCauseCodes
DecimalValue
HexadecimalValue
Definition
1
01
Unallocated(unassigned)number.
ThisnumberisnotintheroutingtableorithasnopathacrosstheISDNcloud(network).
1.Checkroutingtabletoseeitthenumberisavailable.
2.Checktomakesurethecorrectdigitsweredialedanditisavalidnumber.
2
02
Noroutetospecifiedtransitnetwork(nationaluse).
Thenumberwasdialedwithatransitnetworkcodesuchas108880tofromAT&TtoMCIandthereisnoroutebetweenthe2networks.
3
03
Noroutetodestination.
Thedialednumberisintheroutingplan,butthereisnophysicalroutetothedestination.
1.Thelinkmaybedownatoneendortheother.
2.ThespanorWANisnotconnectedcorrectly.
4
04
Sendspecialinformationtone.
Indicatesthatthecalledpartycannotbereachedforreasonsthatareofalong-termnatureandthatthespecialinformationtoneshouldbereturnedtothecallingparty.
5
05
Misdialedtrunkprefix(nationaluse).
Indicatestheerroneousinclusionofatrunkprefixinthecalledpartynumber.
6
06
ChannelUnacceptable.
Indicatesthatthechannelmostrecentlyidentifiedisnotacceptabletothesendingentityforuseinthiscall.
7
07
CallawardedandbeingdeliveredinanEstablishedchannel.
Indicatesthattheuserhasbeenawardedtheincomingcall,andthattheincomingcallisbeingconnectedtoachannelalreadyestablishedtothatuserforsimilarcalls(e.g.packet-modevirtualcalls).
8
08
Pre-Emption.
Indicatesthatthecallisbeingpre-empted.
0
09
Pre-EmptionCircuitreservedforreuse.
Indicatesthatthecallisbeingclearedbecauseoneoftheusersinvolvedinthecallhasrequestedthatthecallbecleared.
16
10
NormalCallClearing.
Thisisoneofthemostcommoncausecodesandisreceivedformanyreasons.Itusuallyoccursbecausesomeonehungupthecallatonesideortheother.
17
11
UserBusy.
Thenumberdialedisbusyandcannotreceiveanymorecalls.
18
12
NoUserResponding.
Thecalledpartydoesnotrespondtothecall,ordoesnotwishtoanswerthecall.
19
13
NoAnswerfromUser(UserAlerted).
Thecalledpartyhasbeenalertedtotheincomingcall,butdoesnotrespondwithaconnectindicationwithinaprescribedperiodoftime.
Note
ThiscauseisnotnecessarilygeneratedbyQ.931proceduresbutmaybegeneratedbyinternalnetworktimers.
20
14
SubscriberAbsent.
Usedwhenamobilestationhasloggedoff,radiocontactisnotobtainedwithamobilestationorifapersonaltelecommunicationsuseristemporarilynotaddressableatanyuser-networkinterface.
21
15
CallRejected.
Indicatesthattheequipmentsendingthiscausedoesnotwishtoacceptthiscall,alth9oughitcouldhaveacceptedthecallbecausetheequipmentsendingthiscauseisneitherbusynorincompatible.Mayalsobegeneratedbythenetwork,indicatingthatthecallwasclearedduetoasupplementaryserviceconstraint.
22
16
NumberChanged.
Thisisreturnedtoacallingpartywhenthecalledpartynumberindicatedbythecallingpartyisnolongerassigned.Thenewcalledpartynumbermayoptionallybeincludedinthediagnosticfield.Ifanetworkdoesnotsupportthiscausevalue,causenumber1shallbeused.
26
1A
Non-SelectedUserClearing.
Indicatesthattheuserhasnotbeenawardedtheincomingcall.
27
1B
DestinationOut-of-Order.
Thisisaworkingnumber,butthespantothedestinationisnotactiveorthereisaproblemsendingmessagestothisdestination.
28
1C
InvalidNumberFormat(addressincomplete).
Indicatesthatthecalledpartycannotbereachedbecausethecalledpartynumberisnotinavalidformatorisnotcomplete.Thiscanhappenwhenyouarecallingoutusinganetworktypenumber(enterprise)whenyoushouldbecallingoutUnknownorNationalfortheTypeofNumber(TON).
29
1D
FacilityRejected.
Thiscauseisreturnedwhenasupplementaryservicerequestedbytheusercannotbeprovidedbythenetwork.
30
1E
ResponsetoSTATUSENQUIRY.
ThiscauseisincludedintheSTATUSmessagewhenthereasonforgeneratingtheSTATUSmessagewasthepriorreceiptofaSTATUSENQUIRYmessage.
31
1F
Normal,Unspecified.
Thisisaverycommoncausecodeandhappenswhenthenetworkisnotabletodeterminewhattodowiththecallbeingmade.
34
22
NoCircuit/ChannelAvailable.
Therearenochannelsavailabletohandlethiscall.Thismayhappenifthedestinationgatewayisfullwithcalls.
38
26
NetworkOut-of-Order.
Indicatesthatthenetworkisnotfunctioningcorrectlyandthattheconditionislikelytolastarelativelylongperiodoftime.
39
27
PermanentFrameModeConnectionOut-of-Service.
ThiscauseisincludedinaSTATUSmessagetoindicatethatapermanentlyestablishedframemodeconnectionisout-of-service.
40
28
PermanentFrameModeConnectionOperational.
ThiscauseisincludedinaSTATUSmessagetoindicatethatapermanentlyestablishedframemodeconnectionisoperationalandcapableofcarryinguserinformation.
41
29
TemporaryFailure.
Thecallwasdisconnectedduetoanetworkfailure.Thenetworkisnotfunctioningcorrectlyandthattheconditionisnotlikelytolastalongperiodoftime;e.g.,theusermaywishtotryanothercallattemptalmostimmediately.
42
2A
SwitchingEquipmentCongestion.
Indicatesthattheswitchingequipmentgeneratingthiscauseisexperiencingaperiodofhightraffic.
43
2B
AccessInformationDiscarded.
Indicatesthatthenetworkcouldnotdeliveraccessinformationtotheremoteuserasrequested,i.e.,user-to-userinformation,lowlayercompatibility,highlayercompatibility,orsub-address,asindicatedinthediagnostic.
44
2C
RequestedCircuit/ChannelnotAvailable.
Thiscauseisreturnedwhenthecircuitorchannelindicatedbytherequestingentitycannotbeprovidedbytheothersideoftheinterface.Thismayhappenwhenyougetinaglarecondition:
Bothsidesareselectedtop-downorbottom-upchannelhunting.
47
2F
ResourceUnavailable,Unspecified.
Usedtoreportaresourceunavailableeventonlywhennoothercauseintheresourceunavailableclassapplies.
49
31
QualityofServiceNotAvailable.
UsedtoreportthattherequestedQualityofService,asdefinedinRecommendationX.213,cannotbeprovided(e.g.,throughputortransitdelaycannotbesupported).
50
32
RequestedFacilityNotSubscribed.
Thiscauseindicatesthattheuserhasrequestedasupplementaryservicewhichisimplementedbytheequipmentwhichgeneratedthiscause,buttheuserisnotauthorizedtouse.
53
35
OutgoingCallsBarredWithinClosedUserGroup(CUG).
IndicatesthatalthoughthecallingpartyisamemberoftheCUGfortheoutgoingCUGcall,outgoingcallsarenotallowedforthismemberoftheCUG.
55
37
IncomingCallsBarredwithinCUG.
IndicatesthatalthoughthecalledpartyisamemberoftheCUGfortheincomingCUGcall,incomingcallsarenotallowedtothismemberoftheCUG.
57
39
BearerCapabilityNotAuthorized.
Indicatesthattheuserhasrequestedabearercapabilitywhichisimplementedbytheequipmentthatgeneratedthiscausebuttheuserisnotauthorizedtouse.
58
3A
BearerCapabilityNotPresentlyAvailable.
Indicatesthattheuserhasrequestedabearercapability,whichisimplementedbytheequipmentthatgeneratedthiscausebutwhichisnotavailableatthistime.
62
3E
InconsistencyinDesignatedOutgoingAccessInformationandSubscriberClass.
Thiscauseindicatesthatthereisaninconsistencyinthedesignatedoutgoingaccessinformationandsubscriberclass.
63
3F
ServiceorOptionNotAvailable,Unspecified.
Usedtoreportaserviceoroptionnotavailableeventonlywhennoothercauseintheserviceoroptionnotavailableclassapplies.
65
41
BearerCapabilityNotImplemented.
Indicatesthattheequipmentsendingthiscausedoesnotsupportthebearercapabilityrequested(i.e.,requesting64kbdatawhenonlyspeechissupported).
66
42
ChannelTypeNotImplemented.
Indicatesthattheequipmentsendingthiscausedoesnotsupportthechanneltyperequested.
69
45
RequestedFacilityNotImplemented.
Indicatesthattheequipmentsendingthiscausedoesnotsupporttherequestedsupplementaryservice.
70
46
OnlyRestrictedDigitalInformationBearerCapabilityisAvailable(nationaluse).
Indicatesthatthecallingpartyhasrequestedanunrestricted(64kb)bearerservicebutthattheequipmentsendingthiscauseonlysupportstherestrictedversionoftherequestedbearercapability.
79
4F
ServiceorOptionNotImplemented,Unspecified.
Usedtoreportaserviceoroptionnotimplementedeventonlywhennoothercauseintheserviceoroptionnotimplementedclassapplies.
81
51
InvalidCallReferenceValue.
Indicatesthattheequipmentsendingthiscausehasreceivedamessagewithacallreferencethatisnotcurrentlyinuseorassignedontheuser-networkinterface.E.G.Thecallthatisbeingreferencebythisvalue,doesnotexistonthissystem.
82
52
IdentifiedChannelDoesNotExist.
Indicatesthattheequipmentsendingthiscausehasreceivedarequesttouseachannelnotactivatedontheinterfaceforacall.
Forexample,ifauserhassubscribedtothosechannelsonaPRInumberedfrom1to12andtheuserequipmentorthenetworkattemptstousechannels13through23,thiscauseisgenerated.
83
53
ASuspendedCallExists,butThisCallIdentityDoesNot.
Indicatesthatacallresumehasbeenattemptedwithacallidentitywhichdiffersfromthatinuseforanypresentlysuspendedcalls(s).
84
54
CallIdentityin
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