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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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20.5.2 Procedures in the gateway MSC<br />

Page 601<br />

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

The GMSC invokes the short message delivery status report procedure if an absent subscriber indication<br />

or unidentified subscriber indication or SM delivery failure error indicating MS memory capacity exceeded<br />

is received from the servicing MSC during a mobile terminated short message transfer, and the HLR has<br />

not indicated that the SC address is included in the MWD. The unidentified subscriber indication is however<br />

processed as the absent subscriber indication.<br />

The service is invoked also when the HLR has indicated that either of the flags MCEF or MNRF is set and<br />

the SM delivery was successful.<br />

The reason for unsuccessful or successful delivery of the short message is included in the SM Delivery<br />

Outcome in the MAP_REPORT_SM_DELIVERY_STATUS request.<br />

The GMSC sends the MAP_REPORT_SM_DELIVERY_STATUS request to the HLR. As a response the<br />

GMSC will receive the MAP_REPORT_SM_DELIVERY_STATUS confirmation reporting:<br />

- successful outcome of the procedure. The acknowledge primitive may contain the MSISDN-Alert<br />

number which is stored in the MWD List in the HLR;<br />

- unsuccessful outcome of the procedure. The system failure indication is forwarded to the SC.<br />

A provider error is indicated as a system failure to the SC.<br />

The procedure towards the Service Centre may also be aborted. If so the operation towards the HLR is<br />

also aborted.<br />

The short message delivery status report procedure in the GMSC is shown in figure 20.5/3.

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