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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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Fifure 17.3/4: The subscriber data modification<br />

process in the HLR<br />

no<br />

Insert_Subs_<br />

Data_Stand_<br />

Alone_HLR<br />

1<br />

page 1<br />

Repeat<br />

operation<br />

Wait for<br />

repetition<br />

timer expiring<br />

Figure 21.7/2<br />

1<br />

Page 1<br />

NULL<br />

OM_Modify_<br />

_Subscriber_<br />

_Data_<br />

_req<br />

Subscriber<br />

Known<br />

Modify<br />

Subscriber<br />

Data in HLR<br />

OM_Modify_<br />

_Subscriber_<br />

_Data_<br />

_cnf<br />

Subscriber<br />

Registered<br />

in a VLR<br />

Type of<br />

Modification<br />

a b<br />

c<br />

yes<br />

Error<br />

yes<br />

yes<br />

Delete_<br />

Subscriber_<br />

Data_HLR<br />

NO<br />

no<br />

no<br />

Figure 17.3/5<br />

Page 395<br />

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

NULL<br />

Set Error<br />

Unknown<br />

Subscriber<br />

OM_Modify_<br />

_Subscriber_<br />

_Data_<br />

_cnf<br />

Figure 17.3/4: Process Modify_Data_HLR<br />

Cancel_<br />

Location_<br />

HLR<br />

NULL<br />

d & e<br />

Figure 16.1.2/2

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