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GSM 09.02 - Version 5.3.0 - Digital cellular telecommunications - ETSI

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Page 470<br />

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

19.0.2 Functional supplementary service process co-ordinator for VLR<br />

Any functional SS process in the VLR starts by the VLR receiving the<br />

MAP_PROCESS_ACCESS_REQUEST indication. The VLR then acts as described in clause 21 of this<br />

ETS.<br />

If the Process Access Request was successful, the VLR can handle supplementary service indications<br />

from the MSC. Table 19.0/2 shows the co-ordinating process' reaction on receipt of specific SS service<br />

indications from the MSC. After the relevant process is invoked, the received service indication is sent to<br />

that process, and the co-ordinating process terminates.<br />

Service indication received Process invoked<br />

MAP_REGISTER_SS_ind REGISTER_SS_VLR<br />

MAP_ERASE_SS_ind ERASE_SS_VLR<br />

MAP_ACTIVATE_SS_ind ACTIVATE_SS_VLR<br />

MAP_DEACTIVATE_SS_ind DEACTIVATE_SS_VLR<br />

MAP_INTERROGATE_SS_ind INTERROGATE_SS_VLR<br />

MAP_REGISTER_PASSWORD REGISTER_PASSWORD_VLR<br />

Table 19.0/2: Relationship between received service indication and invoked process in the VLR<br />

Figure 19.0/2 shows the co-ordinating process in the VLR.

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