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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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20.1.2 Short message Gateway Co-ordinator for the HLR<br />

Page 551<br />

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

The MAP_OPEN indication opens a dialogue for the short message procedure between the gateway MSC<br />

and the HLR when the application context shortMessageGatewayContext is received. If that service is<br />

successful, the Co-ordinator can receive the first service primitive from the MAP_PM. Depending on the<br />

received primitive, the user process is created as follows:<br />

- if the MAP_SEND_ROUTING_INFO_FOR_SM indication is received, the process<br />

Mobile_Terminated_MS_HLR is created;<br />

- if the MAP_REPORT_SM_DELIVERY_STATUS indication is received, the process<br />

Report_SM_delivery_stat_HLR is created.<br />

After creation of the user processs the Co-ordinator relays the messages between the MAP_PM and the<br />

invoked process until a request or an indication for dialogue termination is received.<br />

The SM Gateway Co-ordinator is shown in the figure 20.1/2.

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