callEventStartTimeStamp

Validations ASN.1 Parent Types

The timestamp gives the start of the call event.

The time is given in the local time of the Sender PMN (or Serving Network where this is not the Sender).  There must be a UTC Time Offset Code associated with the timestamp.

Note that local time is the local time at the location of the chargeable subscriber.  Where the location is not available, as in some call forwarding scenarios, this will be a notional ‘network local time’.

Note that this timestamp is, in most cases, the start of charging, e.g. the call answer time rather than the channel seizure time where the call is charged from answer time.

In the case of an intermediate or last partial record of the same GPRS Call (GPRS Context) the timestamp must be populated with the record start time and not the context start timestamp (see item PDP Context Start Timestamp for identification of GPRS context start time in each partial record).

Derivation: 

GSM item answerTime or seizureTime (GSM 12.05).  This will normally be the equivalent of the start of charging or, where the call event is non chargeable, the equivalent point.

Conditionality: 

Mandatory within groups

             MO Basic Call Information

             MT Basic Call Information

             GPRS Basic Call Information

Format:  CCYYMMDDHHMMSS

 

Example:

> PDP Context activated at 2350hrs

> Two partials raised on TAP (cut across 2400hrs)

First partial:

     Call Event Start Timestamp = PDP Context Start Timestamp = 235000

Second partial:

     Call Event Start Timestamp = 240000

     PDP Context Start Timestamp = 235000

Validations

Error Code

Context

Severity Level

Validation Description

10

 

 

 

20

 

 

 

30

 

 

 

100

 

 

 

101

 

 

MOC

MTC

GPRS

 

MOC

MTC

GPRS

 

MOC

MTC

GPRS

 

MOC

MTC

GPRS

 

MOC

MTC

GPRS

Severe

 

 

 

Severe

 

 

 

Severe

 

 

 

Severe

 

 

 

Severe

 

 

Syntax error.

 

 

 

Value out of range.

 

 

 

Mandatory associated item UTC Time Offset Code missing.

 

 

Call event start timestamp after charge detail timestamp.

 

 

Call event start timestamp after charging timestamp.

 

 

ASN.1 Definition (of containing types) 

GprsBasicCallInformation ::= [APPLICATION 114] SEQUENCE
{
    fraudMonitorIndicator       FraudMonitorIndicator    OPTIONAL,
    gprsChargeableSubscriber    GprsChargeableSubscriber OPTIONAL, -- *m.m.
    rapFileSequenceNumber       RapFileSequenceNumber    OPTIONAL,
    networkType                 NetworkType              OPTIONAL,
    gprsDestination             GprsDestination          OPTIONAL, -- *m.m.
    callEventStartTimeStamp     CallEventStartTimeStamp  OPTIONAL, -- *m.m.
    totalCallEventDuration      TotalCallEventDuration   OPTIONAL, -- *m.m.
    causeForTerm                CauseForTerm             OPTIONAL,
    partialTypeIndicator        PartialTypeIndicator     OPTIONAL,
    pDPContextStartTimestamp    PDPContextStartTimestamp OPTIONAL,
    networkInitPDPContext       NetworkInitPDPContext    OPTIONAL,
    chargingId                  ChargingId               OPTIONAL  -- *m.m.
}

MoBasicCallInformation ::= [APPLICATION 147] SEQUENCE
{
    fraudMonitorIndicator       FraudMonitorIndicator   OPTIONAL,
    chargeableSubscriber        ChargeableSubscriber    OPTIONAL, -- *m.m.
    rapFileSequenceNumber       RapFileSequenceNumber   OPTIONAL,
    networkType                 NetworkType             OPTIONAL,
    destination                 Destination             OPTIONAL,
    destinationNetwork          DestinationNetwork      OPTIONAL,
    callEventStartTimeStamp     CallEventStartTimeStamp OPTIONAL, -- *m.m.
    totalCallEventDuration      TotalCallEventDuration  OPTIONAL, -- *m.m.
    simToolkitIndicator         SimToolkitIndicator     OPTIONAL,
    causeForTerm                CauseForTerm            OPTIONAL
}

MtBasicCallInformation ::= [APPLICATION 153] SEQUENCE
{
    fraudMonitorIndicator       FraudMonitorIndicator   OPTIONAL,
    chargeableSubscriber        ChargeableSubscriber    OPTIONAL, -- *m.m.
    rapFileSequenceNumber       RapFileSequenceNumber   OPTIONAL,
    networkType                 NetworkType             OPTIONAL,
    callOriginator              CallOriginator          OPTIONAL,
    originatingNetwork          OriginatingNetwork      OPTIONAL,
    callEventStartTimeStamp     CallEventStartTimeStamp OPTIONAL, -- *m.m.
    totalCallEventDuration      TotalCallEventDuration  OPTIONAL, -- *m.m.
    simToolkitIndicator         SimToolkitIndicator     OPTIONAL,
    causeForTerm                CauseForTerm            OPTIONAL
}



Parent Types

GprsBasicCallInformation
MoBasicCallInformation
MtBasicCallInformation
Text extracted from GSMA TD57 standard