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Global Call IP Technology Guide — November 2007 581
Dialogic Corporation
IP-Specific Event Cause Codes
1 to 12 and the user equipment or the network attempts to use channels 13 through 23, this
cause is generated.
IPEC_Q931Cause83AsuspendedCallExistsButThisCallIdentityDoesNot (0xc0b, 3083 decimal)
Q.931 cause 83 - A suspended call exists, but this call identity does not; indicates that a call
resume has been attempted with a call identity that differs from that in use for any presently
suspended call(s).
IPEC_Q931Cause84CallIdentityInUse (0xc0c, 3084 decimal)
Q.931 cause 84 - Call identity in use; indicates that the network has received a call suspended
request containing a call identity (including the null call identity) that is already in use for a
suspended call within the domain of interfaces over which the call might be resumed.
IPEC_Q931Cause85NoCallSuspended (0xc0d, 3085 decimal)
Q.931 cause 85 - No call suspended; indicates that the network has received a call resume
request containing a call identity information element that presently does not indicate any
suspended call within the domain of interfaces over which calls may be resumed.
IPEC_Q931Cause86CallHavingTheRequestedCallIdentityHasBeenCleared (0xc0e, 3086 decimal)
Q.931 cause 86 - Call having the requested call identity has been cleared; indicates that the
network has received a call resume request containing a call identity information element
indicating a suspended call that has in the meantime been cleared while suspended (either by
network timeout or by the remote user).
IPEC_Q931Cause88IncompatibleDestination (0xc10, 3088 decimal)
Q.931 cause 88 - Incompatible destination; indicates that the equipment sending this cause has
received a request to establish a call that has low layer compatibility, high layer compatibility,
or other compatibility attributes (for example, data rate) that cannot be accommodated.
IPEC_Q931Cause91InvalidTransitNetworkSelection (0xc13, 3091 decimal)
Q.931 cause 91 - Invalid transit network selection (national use); indicates that a transit
network identification was received that is of an incorrect format as defined by Annex
C/Q.931.
IPEC_Q931Cause95InvalidMessageUnspecified (0xc17, 3095 decimal)
Q.931 cause 95 - Invalid message, unspecified; used to report an invalid message event only
when no other cause in the invalid message class applies.
IPEC_Q931Cause96MandatoryInformationElementMissing (0xc18, 3096 decimal)
Q.931 cause 96 - Mandatory information element is missing; indicates that the equipment
sending this cause has received a message that is missing an information element that must be
present in the message before that message can be processed.
IPEC_Q931Cause97MessageTypeNonExistentOrNotImplemented (0xc19, 3097 decimal)
Q.931 cause 97 - Message type non-existent or not implemented; indicates that the equipment
sending this cause has received a message with a message type it does not recognize either
because 1) the message type is not defined or 2) the message type is defined but not
implemented by the equipment sending this cause.
IPEC_Q931Cause100InvalidInformationElementContents (0xc1c, 3100 decimal)
Q.931 cause 100 - Invalid information element contents; indicates that the equipment sending
this cause has received an information element that it has implemented; however, one or more
fields in the information element are coded in such a way that has not been implemented by the
equipment sending this cause.