h323 disconect code

8/2/2019 H323 Disconect Code

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Details of Cause Codes and Debug Values for VoIP

Use the following tables when reading debugs and the associated values within the debugs.

Q.931 Call Disconnection Causes

These are cause codes from the debug voip ccapi inout command.

Call Disconnection Cause Value (inHex)

Meaning and Number (in Decimal)

CC_CAUSE_UANUM = 0x1 Unassigned number (1)

CC_CAUSE_NO_ROUTE = 0x3 No route to destination (3)

CC_CAUSE_NORM = 0x10 Normal call clearing (16)

CC_CAUSE_BUSY = 0x11 User busy (17)

CC_CAUSE_NORS = 0x12 No user response (18)

CC_CAUSE_NOAN = 0x13 No user answer (19)CC_CAUSE_REJECT = 0x15 Call rejected (21)

CC_CAUSE_INVALID_NUMBER =0x1C

Invalid number (28)

CC_CAUSE_UNSP = 0x1F Normal, unspecified (31)

CC_CAUSE_NO_CIRCUIT = 0x22 No circuit (34)

CC_CAUSE_NO_REQ_CIRCUIT =0x2C

No requested circuit (44)

CC_CAUSE_NO_RESOURCE = 0x2F No resource (47)

CC_CAUSE_NOSV = 0x3F Service or option not available, or

unspecified (63)

Codec Negotiation Values

These codec negotiation values are from the debug voip ccapi inout command.

Negotiation Value Meaning

codec=0x00000001 G711 ULAW 64K PCM

codec=0x00000002 G711 ALAW 64K PCM

codec=0x00000004 G729

codec=0x00000004 G729IETF

codec=0x00000008 G729a

codec=0x00000010 G726r16

codec=0x00000020 G726r24

codec=0x00000040 G726r32


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codec=0x00000080 G728

codec=0x00000100 G723r63

codec=0x00000200 G723r53

codec=0x00000400 GSMFR

codec=0x00000800 G729b

codec=0x00001000 G729ab

codec=0x00002000 G723ar63

codec=0x00004000 G723ar53

codec=0x00008000 CLEAR_CHANNEL

Tone Types

Tone Types Meaning

CC_TONE_RINGBACK 0x1 Ring tone

CC_TONE_FAX 0x2 Fax tone

CC_TONE_BUSY 0x4 Busy tone

CC_TONE_DIALTONE 0x8 Dial tone

CC_TONE_OOS 0x10 Out of service tone

CC_TONE_ADDR_ACK 0x20 Address acknowledgement tone

CC_TONE_DISCONNECT 0x40 Disconnect tone

CC_TONE_OFF_HOOK_NOTICE0x80

Tone indicating that the phone is off-hook

CC_TONE_OFF_HOOK_ALERT0x100

A more urgent version ofCC_TONE_OFF_HOOK_NOTICE

CC_TONE_CUSTOM 0x200 Custom toneused when you are specifyinga custom tone

CC_TONE_NULL 0x0 Null tone

FAX-Rate and VAD Capabilities Values

Values Meaning

CC_CAP_FAX_NONE 0x1 Fax disabled or not available

CC_CAP_FAX_VOICE 0x2 Voice call

CC_CAP_FAX_144 0x4 14,400 baud





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CC_CAP_VAD_OFF 0x1 VAD disabled

CC_CAP_VAD_ON 0x2 VAD enabled

Internal Cause Codes for SIP and H.323

Each H.323 and SIP standard cause code accurately reflects the nature of the associated internalfailure. This capability makes the H.323 and SIP call control protocols consistent with cause codes thatare generated for common problems. For each internal failure, an ITU-T Q.850 release cause code isalso assigned and maps the new standard categories with the Q.850 release cause code anddescription that is assigned to each category.

Table 56 H.323 and SIP Standard Category With Corresponding Q.850 CauseCode Information

Standard

Category

StandardCategory

Description

Q.850Cause

Code Q.850 Release Cause Description

Unallocated(unassigned)number

Typicalscenariosinclude:

Thenumber is notin the routingtable, or it hasno path acrossthe ISDNnetwork.

1 Indicates that the destination requestedby the calling user cannot be reachedbecause the number is unassigned.

No route tospecified transitnetwork(national use)


The wrongtransit networkcode wasdialed.

The transitnetwork doesnot serve thisequipment.

The transitnetwork doesnot exist.

2 Indicates that the gateway is asked toroute the call through an unrecognizedintermediate network.

Destinationaddressresolutionfailure


Domain

3 CC_CAUSE_NO_ROUTE

Indicates that the called party cannot bereached because the network that thecall has been routed through does not


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Name System(DNS)resolutionfailure

Invalidsession targetinconfiguration

serve the desired destination.

Send specialinformationtone


The dialednumber has aspecialconditionapplied to it.

4 Indicates that the called party cannot bereached for reasons that are of a long-term nature and that the specialinformation tone should be returned tothe calling party.

Misdialed trunkprefix (nationaluse)


The wrongtrunk prefixwas dialed.

5 Indicates the erroneous inclusion of atrunk prefix in a called party number.

Channelunacceptable


Failed

channel on thenetwork.

6 Indicates that the channel most recentlyidentified is not acceptable to thesending entity for use in this call.

Call awardedand beingdelivered in anestablishedchannel


Successfulcall.

7 Indicates that the user has beenawarded the incoming call and that theincoming call is being connected to achannel already established to that userfor similar calls.

Preemption Typicalscenariosinclude:

Emergency services

8 Indicates the call is being pre-empted.

Preemption.Circuit reservedfor reuse


Emergency services

9 Indicates the call is being pre-emptedand the circuit is reserved for reuse bypre-empting exchange.


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Normal callclearing


A callparticipant

hung up.

16 Indicates that the call is being clearedbecause one of the users involved withthe call has requested that the call becleared.

User busy Typicalscenariosinclude:

User isalready usingthe telephone.

17 Indicates that the called party is unableto accept another call because the userbusy condition has been encountered.This cause value can be generated bythe called user or by the network. In thecase of user determined user busy, it isnoted that the user equipment iscompatible with the call.

No userresponding


The user is notanswering thetelephone.

18 Used when the called party does notrespond to a call establishmentmessage with either an alerting orconnect indication within the time

allotted. The number that is being dialedhas an active D-channel, but the far endchooses not to answer.

No answerfrom the user(user alerted)


The user is notanswering thetelephone.

19 Used when the called party has beenalerted but does not respond with aconnect indication within the timeallotted. This cause is not generated byQ.931 procedures but can be generatedby internal network timers.

Subscriberabsent


The user lost networkconnectivity oris out of range.

20 Used when a mobile station has loggedoff, radio contact is not obtained with amobile station, or if a personaltelecommunication user is temporarilynot addressable at any user-networkinterface.

Call rejected Typicalscenariosinclude:

Subscriber

has a serviceconstraint thatdoes notaccept thiscall.

21 Indicates that the equipment sendingthis cause code does not wish to acceptthis call, although it could have acceptedthe call because the equipment sendingthe cause is neither busy nor

incompatible.

Might also be generated by the networkindicating that the call was clearedbecause of a supplementary serviceconstraint. The diagnostic field mightcontain additional information about thesupplementary service and reason forrejection.


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Numberchanged


Asubscriber has

changed theirnumber.

22 Returned to a calling party when thecalled number indicated by the callingparty is no longer assigned. The newcalled party number might be optionallyincluded in this diagnostic field.

Redirection to anew destination


Call isforwarded

23 Used by a general ISUP protocolmechanism that decides that the callshould be sent to a different callednumber.

Exchangerouting error


Network isoverloaded

25 Indicates that the destination indicatedby the user cannot be reached becausean intermediate exchange has releasedthe call due to reaching a limit inexecuting the hop counter procedure.

Nonselecteduser clearing


Callednumber failure

26 Indicates that the user has not beenawarded the incoming call.

Socket failure Typicalscenariosinclude:

Transmission ControlProtocol (TCP)socketconnectionfailure

Problemsending anH.323 SETUP

Problemsending aSession

InitiationProtocol (SIP)INVITE

Send or receive erroroccurs onconnectedsocket

27 CC_CAUSE_DESTINATION_OUT_OF_ORDER

Indicates that the destination indicated

by the user cannot be reached becausethe destination's interface is notfunctioning correctly.

The signaling message cannot bedelivered to the remote party.


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Invalid numberformat


the caller is calling out

using anetwork typenumber(enterprise)rather insteadof Unknown orNational.

28 Indicates that the called party cannot bereached because the called partynumber is not in a valid format or is notcomplete.

Facility rejected Typicalscenariosinclude:

A networkservice is not

functioning.

29 Indicates that a supplementary servicerequested by the user cannot beprovided by the network.

Response toSTATUSENQUIRY


ASTATUSmessage isreturned.

30 Included in the STATUS message whenthe reason for generating the STATUSmessage was the prior receipt of aSTATUS ENQUIRY message.

Normal,unspecified


Normaloperation

31 Reports a normal event only when noother cause in the normal class applies.

Nocircuit/channelavailable


No B-channels areavailable tomake theselected call.

34 Indicates that there is no appropriatecircuit or channel presently available tohandle the call.

Network out of

order

Typical

scenariosinclude:

Networkfailure.

38 Indicates that the network is not

functioning correctly and that thecondition is likely to last for an extendedperiod.

Permanentframe modeconnection is

Typicalscenarios

39 Included in a STATUS message toindicate that a permanently establishedframe mode connection is out of service.


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out of service include:

Equipmentor sectionfailure.

Permanentframe modeconnection isoperational


Normaloperation.

40 Included in a STATUS message toindicate that a permanently establishedframe mode connection is operationaland capable of carrying userinformation.

Temporaryfailure


Networkfailure.

41 Indicates that the network is notfunctioning correctly and that thecondition is likely to be resolved quickly.

Switchingequipmentcongestion


High traffic

42 Indicates that the switching equipmentgenerating this cause is experiencinghigh traffic.

Accessinformationdiscarded


Usuallyreported whenthe far-endISDN switch

removes somepiece ofinformationbeforetandem-switching acall.

43 Indicates that the network could notdeliver access information to the remoteuser as requested.

Requestedcircuit/channelnot available


Occursduring glarecondition whenboth sides areselected top-down orbottom-up.Change the

AllocationDirection sothat one end istop-down and

44 Returned when the circuit or channelindicated by the requested entity cannotbe provided by the other side of theinterface.


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the other isbottom-up.

Precedencecall blocked


Caller isbusy and thepriority level ofactive call isequal or higherthan theincoming call.

46 Indicates that there are no pre-emptablecircuits or that the called user is busywith a call of equal or higher pre-emptable level.

Internalresourceallocationfailure


Out of memory

Internalaccess to theTCP socket isunavailable

47 CC_CAUSE_NO_RESOURCE

Indicates a "resource unavailable" event.

QoS error Typicalscenariosinclude:

Quality of service (QoS)

error

49 CC_CAUSE_QOS_UNAVAILABLE

Indicates that the requested QoS cannotbe provided.

Requestedfacility notsubscribed


The caller is trying to usea service thatis notpermitted.

50 Indicates that the user has requested asupplementary service that the user isnot authorized to use.

Outgoing callsbarred withinClosed UserGroup (CUG)


Subscriber configurationcontains thislimitation.

53 Indicates that although the calling partyis a member of a CUG for the outgoingCUG call, outgoing calls are not allowedfor this member of the CUG.

Incoming callsbarred withinClosed User

Typicalscenarios

55 Indicates that although the called partyis a member of a CUG for the incomingCUG call, incoming calls are not allowed


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Group (CUG) include:

Subscriber configurationcontains thislimitation.

for this member of the CUG.

Bearercapability notauthorized


The caller is notauthorized touse the bearercapability.

57 Indicates that the user has requested abearer capability which is implementedon the equipment but the user is notauthorized to use.

Bearercapability notpresentlyavailable


A call isplaced with abearercapacity thatthe serviceprovider doesnot have thecapacity tosupply.

58 Indicates that the user has requested abearer capability which is implementedby the equipment and is currentlyunavailable.

Inconsistencyin designatedoutgoingaccessinformation andsubscriberclass


Networkerror.

62 Indicates that there is an inconsistencyin the designated outgoing accessinformation and subscriber class.

Service oroption notavailable,unspecified


Servicenot available.

63 Reports a service or option not availableevent only when no other cause in theservice or option not available classapplies.

Medianegotiationfailure


No codecmatchoccurred.

H.323 or H.245 problemleading tofailure in

65 CC_CAUSE_BEARER_CAPABILITY_NOT_IMPLEMENTED

Indicates that the equipment sendingthis cause does not support the bearercapability requested.


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medianegotiation

Channel typenotimplemented


Channeltype match notfound.

66 Indicates that the equipment sendingthis cause does not support the channeltype requested.

Requestedfacility notimplemented


Servicetype match notfound.

69 Indicates that the equipment sendingthis cause does not support therequested supplementary service.

Only restricteddigitalinformationbearercapability isavailable(National use)


Routingerror.

70 Indicates that the calling party hasrequested an unrestricted bearer servicebut that the equipment sending thiscause only supports the restrictedversion of the requested bearercapacity.

Service oroption notimplemented,unspecified


Servicenotimplemented.

79 Reports a service or option notimplemented event only when no othercause in the service or option notimplemented class applies.

Invalid callreference value


The far-end switch didnot recognizethe callreference for amessage sentby thegateway.

81 Indicates that the equipment sending thecause has received a message with acall reference which is not currently inuse on the user-network interface.

Identifiedchannel doesnot exist


FractionalPRI error.

82 Indicates a call attempt on a channelthat is not configured.

A suspendedcall exists, butthis call identity

Typicalscenarios

83 Indicates a call resume has beenattempted with a call identity whichdiffers from that in use for any presently


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does not include:

Call IDmismatch

suspended calls.

Call identity inuse


Equipmenterror.

84 Indicates that the network has receiveda call suspended request containing acall identity which is already in use for asuspended call.

No callsuspended


Equipmenterror.

85 Indicates that the network has receiveda call resume request containing a callidentity information element which doesnot indicate any suspended call.

Call having therequested callidentity hasbeen cleared


Networktimeout

Callcleared byremote user.

86 Indicates that the network has receiveda call identity information elementindicating a suspended call that has inthe meantime been cleared wilesuspended.

User is not amember ofClosed UserGroup (CUG)


Caller isnot authorized.

87 Indicates that the called user for theincoming CUG call is not a member ofthe specified CUG.

Incompatibledestination


Number dialed is notcapable of thistype of call.

Caller iscalling a

restricted linein unrestrictedmode.

Caller iscalling a POTSphone usingunrestrictedmode.

88 Indicates that the equipment sendingthis cause has received a request toestablish a call which has compatibilityattributes which cannot beaccommodated.


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NonexistentClosed UserGroup (CUG)


Configuration or dialing

error.

90 Indicates that the specified CUG doesnot exist.

Invalid transitnetworkselection(National use)


Networkerror.

Identification mismatch

91 Indicates that a transit networkidentification was received which is of anincorrect format.

Invalidmessage

received error

Typicalscenarios

include:

An invalidmessage wasreceived

95 CC_CAUSE_INVALID_MESSAGE

Indicates an invalid message event.

Mandatory IEmissing error


MandatoryContact fieldmissing in SIPmessage.

SessionDescriptionProtocol (SDP)body ismissing.

96 CC_CAUSE_MANDATORY_IE_MISSING

Indicates that the equipment sendingthis cause code has received a messagethat is missing an information element(IE). This IE must be present in themessage before the message can be

processed.

Message typenonexistent ornotimplemented


Messagetypeinformation is

missing.

97 Indicates that the equipment sendingthis cause has received a messagewhich is missing an information elementthat must be present in the messagebefore the message can be processed.

Message notcompatible withcall state ormessage typenonexistent ornotimplemented


ISDNprotocol

98 Indicates that the equipment sendingthis cause has received a message suchthat the procedures do not indicate thatthis is a permissible message to receivewhile in this call state.


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mismatch

ISDN statemachineviolation

An informationelement orparameter doesnot exist or isnotimplemented


Elementmismatch

99 Indicates that the equipment sendingthis cause has received a messagewhich includes information elements orparameters not recognized because theinformation element or parameter namesare not defined or are defined but notimplemented by the equipment.

Invalid IEcontents error


SIP

Contact field ispresent, butformat is bad

100 CC_CAUSE_INVALID_IE_ CONTENTS

Indicates that the equipment sendingthis cause code has received an IE thatit has implemented. However, the

equipment sending this cause code hasnot implemented one or more of thespecific fields.

Message ininvalid callstate


Anunexpectedmessage wasreceived thatis incompatiblewith the call

state

101 CC_CAUSE_MESSAGE_IN_INCOMP_CALL_STATE

Indicates that a message has beenreceived that is incompatible with thecall state.

Call setuptimeout failure


No H.323callproceeding

No H.323alerting orconnectmessage

received fromthe terminatinggateway

Inviteexpires timerreachedmaximumnumber of

102 CC_CAUSE_RECOVERY_ON_TIMER_EXPIRY

Indicates that a procedure has beeninitiated by the expiration of a timer inassociation with error handlingprocedures.


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retries allowed

Parameternonexistent ornotimplementedpassed on(National use)


Configuration mismatch.

103 Indicates that the equipment sendingthis cause has received a messagewhich includes parameters notrecognized because the parameters arenot defined or are defined but notimplemented on the equipment.

Message withunrecognizedparameterdiscarded


Unrecognizedparameter.

110 Indicates that the equipment sendingthis cause has discarded a receivedmessage which includes a parameterthat is not recognized.

Protocol error,unspecified


Protocolerror.

111 Reports a protocol error event only whenno other cause in the protocol errorclass applies.

Internal error Typicalscenariosinclude:

Failed tosend messageto PublicSwitchedTelephone

Network(PSTN)

127 CC_CAUSE_INTERWORKING

Indicates that there has beeninterworking with a network that doesnot provide causes for actions it takes.Precise cause cannot be ascertained.

h323 disconect code

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