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GSM 09.02 - Version 5.3.0 - Digital cellular telecommunications - ETSI

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20.5 The SM delivery status report procedure<br />

Page 599<br />

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

The SM delivery status report procedure is used to set the Service Centre address into the message<br />

waiting list in the HLR because the subscriber is absent or unidentified or the memory capacity is<br />

exceeded. The procedure sets the memory capacity exceeded flag in the HLR if the MS memory does not<br />

have room for more messages or the mobile station not reachable flag in the case of unidentified or absent<br />

subscriber.<br />

Additionally the procedure is used to report the HLR about the successful transfer after the Service Centre<br />

has polled the subscriber. This procedure is described also in the subclause 20.4.<br />

The SM delivery status report procedure is shown in figure 20.5/1.<br />

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· 06& · · · · · · 06& · · ·<br />

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· · · · ·<br />

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· · · · !·<br />

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1) MAP_FORWARD_SHORT_MESSAGE_ACK/_NACK (Absent subscriber, unidentified subscriber or<br />

memory capacity exceeded)<br />

2) MAP_REPORT_SM_DELIVERY_STATUS<br />

3) MAP_REPORT_SM_DELIVERY_STATUS_ACK<br />

4) Short Message Negative Acknowledgement (TS <strong>GSM</strong> 03.40)<br />

20.5.1 Procedures in the HLR<br />

Figure 20.5/1: Short message delivery status report procedure<br />

When the HLR receives a MAP_REPORT_SM_DELIVERY_STATUS indication, it acts as described in the<br />

subclause 20.6, macro Report_SM_Delivery_Stat_HLR.<br />

The short message delivery status report process in the HLR is shown in figure 20.5/2.

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