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GSM 09.02 - Version 5.3.0 - Digital cellular telecommunications - ETSI

GSM 09.02 - Version 5.3.0 - Digital cellular telecommunications - ETSI

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2<br />

'Set_error_<br />

_System_<br />

_Failure'<br />

1<br />

yes<br />

Check_<br />

_Indication<br />

OK<br />

ID_known<br />

ID=IMEI<br />

Auth_<br />

_required<br />

Authenticate_<br />

_VLR<br />

3<br />

yes<br />

no<br />

yes<br />

OK<br />

yes<br />

no<br />

no<br />

MAP_PROCESS_ACCESS_<br />

_REQUEST_Ind<br />

Error<br />

OK<br />

IMSI_used<br />

New_<br />

_attempt_with_<br />

_IMSI<br />

'Set_error_<br />

_Illegal_<br />

_Subscriber'<br />

1<br />

3<br />

Illegal_<br />

_Subscriber<br />

no<br />

no<br />

yes<br />

1<br />

ID_Proc<br />

1<br />

Error<br />

'Set_error_<br />

_Unidentified_<br />

_Subscriber'<br />

1<br />

Obtain_IMSI_<br />

_VLR<br />

IMSI_known<br />

2<br />

OK<br />

yes<br />

Unknown_<br />

_Subscriber<br />

Figure 21.4/2 (sheet 1 of 3)<br />

no<br />

Page 627<br />

<strong>GSM</strong> <strong>09.02</strong> <strong>Version</strong> <strong>5.3.0</strong>: August 1996<br />

Figure 21.4/2: Macro for processing<br />

on access request in VLR<br />

Error<br />

'Set_error_<br />

_Unidentified_<br />

_Subscriber'<br />

1<br />

Aborted<br />

'Set_error_<br />

_System_<br />

_Failure'<br />

Error<br />

1<br />

Aborted<br />

Procedure_<br />

_Error<br />

'Set_error_<br />

_System_<br />

_Failure'<br />

1<br />

Error<br />

Error<br />

Null

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