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GSM 09.02 - Version 5.3.0 - Digital cellular telecommunications - ETSI

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Page 498<br />

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

19.5 Interrogation procedure<br />

19.5.1 General<br />

The interrogation procedure is used to retrieve information related to a supplementary service from the<br />

VLR or the HLR. It is the VLR which decides whether an interrogation request should be forwarded to the<br />

HLR or not. Some non-supplementary service related services may be invoked as a result of the<br />

procedure, as described in the subclauses below.<br />

The interrogation procedure is shown in figure 19.5.1/1.<br />

The following services may be used:<br />

MAP_PROCESS_ACCESS_REQUEST (defined in clauses 6 and 21);<br />

MAP_TRACE_SUBSCRIBER_ACTIVITY (defined in clauses 7 and 21);<br />

MAP_PROVIDE_IMSI (defined in clauses 6 and 21);<br />

MAP_FORWARD_NEW_TMSI (defined in clauses 6 and 21);<br />

MAP_AUTHENTICATE (defined in clauses 6 and 21);<br />

MAP_SET_CIPHERING_MODE (defined in clauses 6 and 21);<br />

MAP_CHECK_IMEI (defined in clauses 6 and 21);<br />

MAP_READY_FOR_SM (defined in clauses 10 and 21);<br />

MAP_INTERROGATE_SS (defined in clause 9).<br />

¸¹ ¸¹ % ¸¹ ' ¸¹<br />

· 06 · ·06& ·À·9/5 ·À· +/5 ·<br />

º» º» º» º»<br />

· $B&0B6(59B5(4 · · ·<br />

· !·0$3B352&(66B$&&B5(4 · ·<br />

· QRWH ·! ·<br />

· · QRWH · ·<br />

· · · ·<br />

· $B,17(552*$7(B66· 0$3B,17(552*$7(B66 ·0$3B,17(552*$7(B66·<br />

· !·!· !·<br />

· · · ·<br />

· $B,17(55B66 DFN · 0$3B,17(55B66 DFN ·0$3B,17(5B66 DFN ·<br />

· · · ·<br />

· · · QRWH ·<br />

NOTE 1: For details of the procedure on the radio path, see TS <strong>GSM</strong> 04.08, 04.10, 04.8x and 04.9x.<br />

Services shown in dotted lines indicate the trigger provided by the signalling on the radio path,<br />

and the signalling triggered on the radio path.<br />

NOTE 2: For details on the Process Access Request procedure, please refer to clause 21 in this ETS.<br />

NOTE 3: Services printed in italics are optional.<br />

Figure 19.5.1/1: Interfaces and services for supplementary service interrogation

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