Instances in

Management Information Base

MtasPm_MtasCc_PmGroup



ManagedElement=1
    +-SystemFunctions=1
        +-Pm=1
            +-PmGroup=MtasCc
NameValue
categoryFeature MtasFunction, Class MtasCc
consistentDatatrue
generationIMS
moClass.moClassNameMtasCc
moClass.mimNameMtasFunction
moClass.mimVersion0
moClass.mimRelease1
pmGroupIdMtasCc
pmGroupVersion1.0
switchingTechnologyPacket Switched
validitytrue

                +-MeasurementType=MtasCcbsIndicationOrigNOkE
NameValue
aggregationSUM
collectionMethodCC
conditionThe counter is incremented when the originating MTAS does not indicate that CCBS is possible to the user because of an external error or absence of a valid license.
cpiHeadingMtasCc
descriptionThe total number of unsuccessful Call Completion Busy Subscriber (CCBS) originating indications to the user because of an external error.
measurementNameMtasCcbsIndicationOrigNOkE
measurementResultinteger
measurementStatusUSED
measurementTypeIdMtasCcbsIndicationOrigNOkE
multiplicity1
size8

                +-MeasurementType=MtasCcbsIndicationOrigNOkI
NameValue
aggregationSUM
collectionMethodCC
conditionThe counter is incremented when the originating MTAS does not indicate that CCBS is possible to the user because of an internal error or the user agent queue is full.
cpiHeadingMtasCc
descriptionThe total number of unsuccessful Call Completion Busy Subscriber (CCBS) originating indications to the user because of an internal error or the user agent queue is full.
measurementNameMtasCcbsIndicationOrigNOkI
measurementResultinteger
measurementStatusUSED
measurementTypeIdMtasCcbsIndicationOrigNOkI
multiplicity1
size8

                +-MeasurementType=MtasCcbsIndicationTermNOkE
NameValue
aggregationSUM
collectionMethodCC
conditionThe counter is incremented when the terminating MTAS does not indicate that CCBS is possible to the user because of an external error or absence of a valid license.
cpiHeadingMtasCc
descriptionThe total number of unsuccessful Call Completion Busy Subscriber (CCBS) terminating indications to the user because of an external error.
measurementNameMtasCcbsIndicationTermNOkE
measurementResultinteger
measurementStatusUSED
measurementTypeIdMtasCcbsIndicationTermNOkE
multiplicity1
size8

                +-MeasurementType=MtasCcbsIndicationTermNOkI
NameValue
aggregationSUM
collectionMethodCC
conditionThe counter is incremented when the terminating MTAS does not indicate that CCBS is possible to the user because of an internal error or the user monitor queue is full.
cpiHeadingMtasCc
descriptionThe total number of unsuccessful Call Completion Busy Subscriber (CCBS) terminating indications to the user because of an internal error or the user monitor queue is full.
measurementNameMtasCcbsIndicationTermNOkI
measurementResultinteger
measurementStatusUSED
measurementTypeIdMtasCcbsIndicationTermNOkI
multiplicity1
size8

                +-MeasurementType=MtasCcbsInvocationOrigNOkE
NameValue
aggregationSUM
collectionMethodCC
conditionThe counter is incremented when the originating MTAS rejects a request to invoke CCBS because of an external error.
cpiHeadingMtasCc
descriptionThe total number of unsuccessful Call Completion Busy Subscriber (CCBS) originating invocations because of an external error.
measurementNameMtasCcbsInvocationOrigNOkE
measurementResultinteger
measurementStatusUSED
measurementTypeIdMtasCcbsInvocationOrigNOkE
multiplicity1
size8

                +-MeasurementType=MtasCcbsInvocationOrigNOkI
NameValue
aggregationSUM
collectionMethodCC
conditionThe counter is incremented when the originating MTAS rejects a request to invoke CCBS because of an internal error.
cpiHeadingMtasCc
descriptionThe total number of unsuccessful Call Completion Busy Subscriber (CCBS) originating invocations because of an internal error.
measurementNameMtasCcbsInvocationOrigNOkI
measurementResultinteger
measurementStatusUSED
measurementTypeIdMtasCcbsInvocationOrigNOkI
multiplicity1
size8

                +-MeasurementType=MtasCcbsInvocationOrigOk
NameValue
aggregationSUM
collectionMethodCC
conditionThe counter is incremented by the originating MTAS after a caller successfully invokes a CCBS request.
cpiHeadingMtasCc
descriptionThe total number of successful originating Call Completion Busy Subscriber (CCBS) invocations.
measurementNameMtasCcbsInvocationOrigOk
measurementResultinteger
measurementStatusUSED
measurementTypeIdMtasCcbsInvocationOrigOk
multiplicity1
size8

                +-MeasurementType=MtasCcbsInvocationTermNOkE
NameValue
aggregationSUM
collectionMethodCC
conditionThe counter is incremented when the terminating MTAS rejects a request to invoke CCBS because of an external error.
cpiHeadingMtasCc
descriptionThe total number of unsuccessful Call Completion Busy Subscriber (CCBS) terminating invocations because of an external error.
measurementNameMtasCcbsInvocationTermNOkE
measurementResultinteger
measurementStatusUSED
measurementTypeIdMtasCcbsInvocationTermNOkE
multiplicity1
size8

                +-MeasurementType=MtasCcbsInvocationTermNOkI
NameValue
aggregationSUM
collectionMethodCC
conditionThe counter is incremented when the terminating MTAS rejects a request to invoke CCBS because of an internal error.
cpiHeadingMtasCc
descriptionThe total number of unsuccessful Call Completion Busy Subscriber (CCBS) terminating invocations because of an internal error.
measurementNameMtasCcbsInvocationTermNOkI
measurementResultinteger
measurementStatusUSED
measurementTypeIdMtasCcbsInvocationTermNOkI
multiplicity1
size8

                +-MeasurementType=MtasCcbsInvocationTermOk
NameValue
aggregationSUM
collectionMethodCC
conditionThe counter is incremented by the terminating MTAS after a caller successfully invokes a CCBS request.
cpiHeadingMtasCc
descriptionThe total number of successful terminating Call Completion Busy Subscriber (CCBS) invocations.
measurementNameMtasCcbsInvocationTermOk
measurementResultinteger
measurementStatusUSED
measurementTypeIdMtasCcbsInvocationTermOk
multiplicity1
size8

                +-MeasurementType=MtasCcbsOrigSuccess
NameValue
aggregationSUM
collectionMethodCC
conditionThe counter is incremented by the originating MTAS after the Call Completion call is answered by the called party.
cpiHeadingMtasCc
descriptionThe total number of successfully answered Call Completion Busy Subscriber calls on the originating MTAS.
measurementNameMtasCcbsOrigSuccess
measurementResultinteger
measurementStatusUSED
measurementTypeIdMtasCcbsOrigSuccess
multiplicity1
size8

                +-MeasurementType=MtasCcbsTermSuccess
NameValue
aggregationSUM
collectionMethodCC
conditionThe counter is incremented by the terminating MTAS after the Call Completion call is answered by the called party.
cpiHeadingMtasCc
descriptionThe total number of successfully answered Call Completion Busy Subscriber calls on the terminating MTAS.
measurementNameMtasCcbsTermSuccess
measurementResultinteger
measurementStatusUSED
measurementTypeIdMtasCcbsTermSuccess
multiplicity1
size8

                +-MeasurementType=MtasCcnlIndicationOrigNOkE
NameValue
aggregationSUM
collectionMethodCC
conditionThe counter is incremented when the originating MTAS does not indicate that CCNL is possible to the user because of an external error or absence of a valid license.
cpiHeadingMtasCc
descriptionThe total number of unsuccessful CCNL originating indications to the user because of an external error.
measurementNameMtasCcnlIndicationOrigNOkE
measurementResultinteger
measurementStatusUSED
measurementTypeIdMtasCcnlIndicationOrigNOkE
multiplicity1
size8

                +-MeasurementType=MtasCcnlIndicationOrigNOkI
NameValue
aggregationSUM
collectionMethodCC
conditionThe counter is incremented when the originating MTAS does not indicate that CCNL is possible to the user because of an internal error or the user agent queue is full.
cpiHeadingMtasCc
descriptionThe total number of unsuccessful CCNL originating indications to the user because of an internal error or the user agent queue is full.
measurementNameMtasCcnlIndicationOrigNOkI
measurementResultinteger
measurementStatusUSED
measurementTypeIdMtasCcnlIndicationOrigNOkI
multiplicity1
size8

                +-MeasurementType=MtasCcnlIndicationTermNOkE
NameValue
aggregationSUM
collectionMethodCC
conditionThe counter is incremented by 1 when the terminating MTAS does not indicate that CCNL is possible to the user because of an external error or absence of a valid license.
cpiHeadingMtasCc
descriptionThe total number of unsuccessful CCNL terminating indications to the user because of an external error.
measurementNameMtasCcnlIndicationTermNOkE
measurementResultinteger
measurementStatusUSED
measurementTypeIdMtasCcnlIndicationTermNOkE
multiplicity1
size8

                +-MeasurementType=MtasCcnlIndicationTermNOkI
NameValue
aggregationSUM
collectionMethodCC
conditionThe counter is incremented by 1 when the terminating MTAS does not indicate that CCNL is possible to the user because of an internal error or the user monitor queue is full.
cpiHeadingMtasCc
descriptionThe total number of unsuccessful CCNL terminating indications to the user because of an internal error or the user monitor queue is full.
measurementNameMtasCcnlIndicationTermNOkI
measurementResultinteger
measurementStatusUSED
measurementTypeIdMtasCcnlIndicationTermNOkI
multiplicity1
size8

                +-MeasurementType=MtasCcnlInvocationOrigNOkE
NameValue
aggregationSUM
collectionMethodCC
conditionThe counter is incremented by 1 when the originating MTAS rejects a request to invoke CCNL because of an external error.
cpiHeadingMtasCc
descriptionThe total number of unsuccessful CCNL originating invocations because of an external error.
measurementNameMtasCcnlInvocationOrigNOkE
measurementResultinteger
measurementStatusUSED
measurementTypeIdMtasCcnlInvocationOrigNOkE
multiplicity1
size8

                +-MeasurementType=MtasCcnlInvocationOrigNOkI
NameValue
aggregationSUM
collectionMethodCC
conditionThe counter is incremented by 1 when the originating MTAS rejects a request to invoke CCNL because of an internal error.
cpiHeadingMtasCc
descriptionThe total number of unsuccessful CCNL originating invocations because of an internal error.
measurementNameMtasCcnlInvocationOrigNOkI
measurementResultinteger
measurementStatusUSED
measurementTypeIdMtasCcnlInvocationOrigNOkI
multiplicity1
size8

                +-MeasurementType=MtasCcnlInvocationOrigOk
NameValue
aggregationSUM
collectionMethodCC
conditionThe counter is incremented by 1 by the originating MTAS after a caller successfully invokes a CCNL request.
cpiHeadingMtasCc
descriptionThe total number of successful originating CCNL invocations.
measurementNameMtasCcnlInvocationOrigOk
measurementResultinteger
measurementStatusUSED
measurementTypeIdMtasCcnlInvocationOrigOk
multiplicity1
size8

                +-MeasurementType=MtasCcnlInvocationTermNOkE
NameValue
aggregationSUM
collectionMethodCC
conditionThe counter is incremented by 1 when the terminating MTAS rejects a request to invoke CCNL because of an external error.
cpiHeadingMtasCc
descriptionThe total number of unsuccessful CCNL terminating invocations because of an external error.
measurementNameMtasCcnlInvocationTermNOkE
measurementResultinteger
measurementStatusUSED
measurementTypeIdMtasCcnlInvocationTermNOkE
multiplicity1
size8

                +-MeasurementType=MtasCcnlInvocationTermNOkI
NameValue
aggregationSUM
collectionMethodCC
conditionThe counter is incremented by 1 when the terminating MTAS rejects a request to invoke CCNL because of an internal error.
cpiHeadingMtasCc
descriptionThe total number of unsuccessful CCNL terminating invocations because of an internal error.
measurementNameMtasCcnlInvocationTermNOkI
measurementResultinteger
measurementStatusUSED
measurementTypeIdMtasCcnlInvocationTermNOkI
multiplicity1
size8

                +-MeasurementType=MtasCcnlInvocationTermOk
NameValue
aggregationSUM
collectionMethodCC
conditionThe counter is incremented by 1 by the terminating MTAS after a caller successfully invokes a CCNL request.
cpiHeadingMtasCc
descriptionThe total number of successful terminating CCNL invocations.
measurementNameMtasCcnlInvocationTermOk
measurementResultinteger
measurementStatusUSED
measurementTypeIdMtasCcnlInvocationTermOk
multiplicity1
size8

                +-MeasurementType=MtasCcnlOrigSuccess
NameValue
aggregationSUM
collectionMethodCC
conditionThe counter is incremented by 1 by the originating MTAS, after the Call Completion CCNL call is answered by the called party.
cpiHeadingMtasCc
descriptionThe total number of successful originating CCNL invocations.
measurementNameMtasCcnlOrigSuccess
measurementResultinteger
measurementStatusUSED
measurementTypeIdMtasCcnlOrigSuccess
multiplicity1
size8

                +-MeasurementType=MtasCcnlTermSuccess
NameValue
aggregationSUM
collectionMethodCC
conditionThe counter is incremented by 1, by the terminating MTAS, after the Call Completion CCNL call is answered by the called party.
cpiHeadingMtasCc
descriptionThe total number of successful terminating CCNL invocations.
measurementNameMtasCcnlTermSuccess
measurementResultinteger
measurementStatusUSED
measurementTypeIdMtasCcnlTermSuccess
multiplicity1
size8

                +-MeasurementType=MtasCcnrIndicationOrigNOkE
NameValue
aggregationSUM
collectionMethodCC
conditionThe counter is incremented when the originating MTAS does not indicate that CCNR is possible to the user because of an external error or absence of a valid license.
cpiHeadingMtasCc
descriptionThe total number of unsuccessful Call Completion by No Reply (CCNR) originating indications to the user because of an external error.
measurementNameMtasCcnrIndicationOrigNOkE
measurementResultinteger
measurementStatusUSED
measurementTypeIdMtasCcnrIndicationOrigNOkE
multiplicity1
size8

                +-MeasurementType=MtasCcnrIndicationOrigNOkI
NameValue
aggregationSUM
collectionMethodCC
conditionThe counter is incremented when the originating MTAS does not indicate that CCNR is possible to the user because of an internal error or the user agent queue is full.
cpiHeadingMtasCc
descriptionThe total number of unsuccessful Call Completion by No Reply (CCNR) originating indications to the user because of an internal error or the user agent queue is full.
measurementNameMtasCcnrIndicationOrigNOkI
measurementResultinteger
measurementStatusUSED
measurementTypeIdMtasCcnrIndicationOrigNOkI
multiplicity1
size8

                +-MeasurementType=MtasCcnrIndicationTermNOkE
NameValue
aggregationSUM
collectionMethodCC
conditionThe counter is incremented when the terminating MTAS does not indicate that CCNR is possible to the user because of an external error or absence of a valid license.
cpiHeadingMtasCc
descriptionThe total number of unsuccessful Call Completion by No Reply (CCNR) terminating indications to the user because of an external error.
measurementNameMtasCcnrIndicationTermNOkE
measurementResultinteger
measurementStatusUSED
measurementTypeIdMtasCcnrIndicationTermNOkE
multiplicity1
size8

                +-MeasurementType=MtasCcnrIndicationTermNOkI
NameValue
aggregationSUM
collectionMethodCC
conditionThe counter is incremented when the terminating MTAS does not indicate that CCNR is possible to the user because of an internal error or the user monitor queue is full.
cpiHeadingMtasCc
descriptionThe total number of unsuccessful Call Completion by No Reply (CCNR) terminating indications to the user because of an internal error or the user monitor queue is full.
measurementNameMtasCcnrIndicationTermNOkI
measurementResultinteger
measurementStatusUSED
measurementTypeIdMtasCcnrIndicationTermNOkI
multiplicity1
size8

                +-MeasurementType=MtasCcnrInvocationOrigNOkE
NameValue
aggregationSUM
collectionMethodCC
conditionThe counter is incremented when the originating MTAS rejects a request to invoke CCNR because of an external error.
cpiHeadingMtasCc
descriptionThe total number of unsuccessful Call Completion No Reply (CCNR) originating invocations because of an external error.
measurementNameMtasCcnrInvocationOrigNOkE
measurementResultinteger
measurementStatusUSED
measurementTypeIdMtasCcnrInvocationOrigNOkE
multiplicity1
size8

                +-MeasurementType=MtasCcnrInvocationOrigNOkI
NameValue
aggregationSUM
collectionMethodCC
conditionThe counter is incremented when the originating MTAS rejects a request to invoke CCNR because of an internal error.
cpiHeadingMtasCc
descriptionThe total number of unsuccessful Call Completion No Reply (CCNR) originating invocations because of an internal error.
measurementNameMtasCcnrInvocationOrigNOkI
measurementResultinteger
measurementStatusUSED
measurementTypeIdMtasCcnrInvocationOrigNOkI
multiplicity1
size8

                +-MeasurementType=MtasCcnrInvocationOrigOk
NameValue
aggregationSUM
collectionMethodCC
conditionThe counter is incremented by the originating MTAS after a caller successfully invokes a CCNR request.
cpiHeadingMtasCc
descriptionThe total number of successful originating Call Completion No Reply (CCNR) invocations.
measurementNameMtasCcnrInvocationOrigOk
measurementResultinteger
measurementStatusUSED
measurementTypeIdMtasCcnrInvocationOrigOk
multiplicity1
size8

                +-MeasurementType=MtasCcnrInvocationTermNOkE
NameValue
aggregationSUM
collectionMethodCC
conditionThe counter is incremented when the terminating MTAS rejects a request to invoke CCNR because of an external error.
cpiHeadingMtasCc
descriptionThe total number of unsuccessful Call Completion No Reply (CCNR) terminating invocations because of an external error.
measurementNameMtasCcnrInvocationTermNOkE
measurementResultinteger
measurementStatusUSED
measurementTypeIdMtasCcnrInvocationTermNOkE
multiplicity1
size8

                +-MeasurementType=MtasCcnrInvocationTermNOkI
NameValue
aggregationSUM
collectionMethodCC
conditionThe counter is incremented when the terminating MTAS rejects a request to invoke CCNR because of an internal error.
cpiHeadingMtasCc
descriptionThe total number of unsuccessful Call Completion No Reply (CCNR) terminating invocations because of an internal error.
measurementNameMtasCcnrInvocationTermNOkI
measurementResultinteger
measurementStatusUSED
measurementTypeIdMtasCcnrInvocationTermNOkI
multiplicity1
size8

                +-MeasurementType=MtasCcnrInvocationTermOk
NameValue
aggregationSUM
collectionMethodCC
conditionThe counter is incremented by the terminating MTAS after a caller successfully invokes a CCNR request.
cpiHeadingMtasCc
descriptionThe total number of successful terminating Call Completion Busy Subscriber (CCNR) invocations.
measurementNameMtasCcnrInvocationTermOk
measurementResultinteger
measurementStatusUSED
measurementTypeIdMtasCcnrInvocationTermOk
multiplicity1
size8

                +-MeasurementType=MtasCcnrOrigSuccess
NameValue
aggregationSUM
collectionMethodCC
conditionThe counter is incremented by the originating MTAS after the Call Completion call is answered by the called party.
cpiHeadingMtasCc
descriptionThe total number of successfully answered Call Completion by No Reply calls on the originating MTAS.
measurementNameMtasCcnrOrigSuccess
measurementResultinteger
measurementStatusUSED
measurementTypeIdMtasCcnrOrigSuccess
multiplicity1
size8

                +-MeasurementType=MtasCcnrTermSuccess
NameValue
aggregationSUM
collectionMethodCC
conditionThe counter is incremented by the terminating MTAS after the Call Completion call is answered by the called party.
cpiHeadingMtasCc
descriptionThe total number of successfully answered Call Completion by No Reply calls on the terminating MTAS.
measurementNameMtasCcnrTermSuccess
measurementResultinteger
measurementStatusUSED
measurementTypeIdMtasCcnrTermSuccess
multiplicity1
size8

                +-MeasurementType=MtasCcRecallNOkE
NameValue
aggregationSUM
collectionMethodCC
conditionThe counter is incremented when the originating MTAS receives a failure response or MTAS fails to receive an answer from the caller during the Third Party Call Control recall sequence.
cpiHeadingMtasCc
descriptionThe total number of unsuccessful recalled Call Completion requests because of an external error.
measurementNameMtasCcRecallNOkE
measurementResultinteger
measurementStatusUSED
measurementTypeIdMtasCcRecallNOkE
multiplicity1
size8

                +-MeasurementType=MtasCcRecallNOkI
NameValue
aggregationSUM
collectionMethodCC
conditionThe counter is incremented when the originating MTAS determines that the caller is busy, or because of an internal error during the Third Party Call Control recall sequence.
cpiHeadingMtasCc
descriptionThe total number of unsuccessful recalled Call Completion requests because of an internal error.
measurementNameMtasCcRecallNOkI
measurementResultinteger
measurementStatusUSED
measurementTypeIdMtasCcRecallNOkI
multiplicity1
size8

                +-MeasurementType=MtasCcRecallOk
NameValue
aggregationSUM
collectionMethodCC
conditionThe counter is incremented by the originating MTAS after a successful recall is determined after receiving an answer from the caller during the Third Party Call Control sequence.
cpiHeadingMtasCc
descriptionThe total number of successfully recalled Call Completion requests.
measurementNameMtasCcRecallOk
measurementResultinteger
measurementStatusUSED
measurementTypeIdMtasCcRecallOk
multiplicity1
size8

                +-MeasurementType=MtasCcRetainedOrigRequests
NameValue
aggregationSUM
collectionMethodCC
conditionThe counter is incremented by 1, when a busy response is received to a CC INVITE request and the CC request was retained by the network (as indicated in an earlier NOTIFY (queued) message).
cpiHeadingMtasCc
descriptionNumber of retained Communication Completion requests in the originating agent queue.
measurementNameMtasCcRetainedOrigRequests
measurementResultinteger
measurementStatusUSED
measurementTypeIdMtasCcRetainedOrigRequests
multiplicity1
size8

                +-MeasurementType=MtasCcRetainedTermRequests
NameValue
aggregationSUM
collectionMethodCC
conditionThe counter is incremented by 1, when a busy response is received to a CC INVITE request and the mtasCcRetainOption has the value 'Enabled'.
cpiHeadingMtasCc
descriptionNumber of retained Communication Completion requests in the terminating monitor queue.
measurementNameMtasCcRetainedTermRequests
measurementResultinteger
measurementStatusUSED
measurementTypeIdMtasCcRetainedTermRequests
multiplicity1
size8

                +-MeasurementType=MtasCcSuspendedOrigRequests
NameValue
aggregationSUM
collectionMethodCC
conditionThe counter is incremented by 1, when a 200 OK response is received to a PUBLISH request that reported the caller status as busy.
cpiHeadingMtasCc
descriptionNumber of suspended Communication Completion requests in the originating agent queue.
measurementNameMtasCcSuspendedOrigRequests
measurementResultinteger
measurementStatusUSED
measurementTypeIdMtasCcSuspendedOrigRequests
multiplicity1
size8

                +-MeasurementType=MtasCcSuspendedTermRequests
NameValue
aggregationSUM
collectionMethodCC
conditionThe counter is incremented by 1, when a PUBLISH request is received that relates to a CC request in the monitor queue and reports the caller status to be busy.
cpiHeadingMtasCc
descriptionNumber of suspended Communication Completion requests in the terminating monitor queue.
measurementNameMtasCcSuspendedTermRequests
measurementResultinteger
measurementStatusUSED
measurementTypeIdMtasCcSuspendedTermRequests
multiplicity1
size8

                +-MeasurementType=MtasCcTotalDiscardedOrigEntries
NameValue
aggregationSUM
collectionMethodCC
conditionThe counter is incremented when the originating MTAS discards an entry from the CC agent queue.
cpiHeadingMtasCc
descriptionThe total number of entries discarded from the originating MTAS Call Completion (CC) agent queue.
measurementNameMtasCcTotalDiscardedOrigEntries
measurementResultinteger
measurementStatusUSED
measurementTypeIdMtasCcTotalDiscardedOrigEntries
multiplicity1
size8

                +-MeasurementType=MtasCcTotalDiscardedTermEntries
NameValue
aggregationSUM
collectionMethodCC
conditionThe counter is incremented when the terminating MTAS discards an entry from the CC monitor queue.
cpiHeadingMtasCc
descriptionThe total number of entries discarded from the terminating MTAS Call Completion (CC) monitor queue.
measurementNameMtasCcTotalDiscardedTermEntries
measurementResultinteger
measurementStatusUSED
measurementTypeIdMtasCcTotalDiscardedTermEntries
multiplicity1
size8
  mib MtasPm_MtasCc_PmGroup