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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

GSM 09.02 - Version 5.3.0 - Digital cellular telecommunications - ETSI

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PROCESS_ACCESS_<br />

QUEST_Req,<br />

DELIMITER_Req<br />

WAIT_FOR_<br />

PROCESS_ACCESS_<br />

RESULT<br />

MAP_PROCESS_<br />

ACCESS_<br />

REQUEST_Cnf<br />

Check_<br />

Confirmation<br />

OK<br />

Ciphering_<br />

Required<br />

WAIT<br />

yes<br />

A_CIPHER_<br />

MODE_<br />

COMMAND<br />

no<br />

yes<br />

yes<br />

VLR_<br />

Dialogue_<br />

exists<br />

Error<br />

Obtain_IMSI_<br />

MSC<br />

OK Error<br />

WAIT_FOR_<br />

PROCESS_ACCESS_<br />

RESULT<br />

no<br />

A_CM_<br />

SERV_ACC<br />

no<br />

OK Error<br />

Error<br />

Receive_Open_<br />

Cnf<br />

CM Service type =<br />

Page Response<br />

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

Page 621<br />

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

Perform_MAP_<br />

V1_Procedure<br />

Error<br />

uthenticate_<br />

_MSC<br />

OK<br />

V1<br />

WAIT_FOR_<br />

PROCESS_ACCESS_<br />

RESULT<br />

MAP_OPEN_Req,<br />

MAP_PROCESS_ACCESS_REQUEST_Req,<br />

MAP_DELIMITER_Req<br />

Error<br />

Error<br />

Trace_<br />

Subscriber_<br />

Activity_MSC<br />

WAIT_FOR_<br />

PROCESS_ACCESS_<br />

RESULT<br />

Map_Error_to_<br />

Reject_Cause<br />

A_CM_<br />

SERV_REJ<br />

Error<br />

Provider error,<br />

User error,<br />

Data error

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