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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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1<br />

Receive_<br />

Open_<br />

Confirm<br />

Wait_for_<br />

USSD_ind<br />

MAP_UNST'D_<br />

SS_NOTIFY_<br />

ind<br />

Sheet 2<br />

Start_USSD_<br />

VLR<br />

OK<br />

OK<br />

MAP_UNST'D_<br />

SS_NOTIFY_<br />

req<br />

MAP_<br />

DELIMITER_<br />

req<br />

Wait_for_<br />

ussdn_cnf<br />

MAP_OPEN_req<br />

MAP_DELIMITOR_req<br />

Section<br />

21.1<br />

From HLR<br />

To HLR<br />

Error, V1<br />

Set Error<br />

MAP_UNST'D_<br />

SS_NOTIFY_<br />

rsp<br />

NULL<br />

Local Err<br />

MAP_<br />

NOTICE_<br />

ind<br />

MAP_<br />

CLOSE_<br />

req<br />

MAP_U_<br />

ABORT_req<br />

MAP_<br />

CLOSE_<br />

req<br />

NULL<br />

Err<br />

From HLR<br />

MAP_UNST'D_<br />

SS_REQUEST_<br />

ind<br />

Sheet 2<br />

Start_USSD_<br />

VLR<br />

OK<br />

MAP_UNST'D_<br />

SS_REQUEST_<br />

req<br />

MAP_<br />

DELIMITER_<br />

req<br />

Wait_for_<br />

ussdr_cnf<br />

Figure 19.9.3/1 (sheet 1 of 4)<br />

Page 533<br />

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

Arrows to left are to MSC,<br />

Arrows to right are to HLR<br />

unless otherwise stated.<br />

NULL<br />

Set Error<br />

MAP_UNST'D_<br />

SS_REQUEST_<br />

rsp<br />

NULL<br />

Local Err<br />

NULL<br />

Receive_<br />

Open_<br />

ind<br />

1 NULL<br />

MAP_U_ABORT_ind<br />

MAP_P_ABORT_ind<br />

MAP_CLOSE_ind<br />

MAP_<br />

CLOSE_<br />

req<br />

From HLR<br />

Section 21.1<br />

OK Error,V1<br />

Err

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