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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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US_<br />

Release<br />

Wait_for_<br />

USSD_Appl<br />

A_CM_<br />

REL_COMP<br />

NULL<br />

US_<br />

Release<br />

A_CM_<br />

SERV_REL<br />

Arrows to left are to MS,<br />

arrows to right are to USSD application<br />

unless otherwise stated.<br />

US_UNST'D_<br />

SS_NOTIFY_<br />

ind<br />

US_<br />

Release<br />

A_UNST'D_<br />

SS_NOTIFY_<br />

req<br />

Wait_for_<br />

ussdn_cnf_2<br />

A_UNST'D_<br />

SS_NOTIFY_<br />

cnf<br />

US_UNST'D_<br />

SS_NOTIFY_<br />

rsp<br />

Wait_for_<br />

USSD_Appl<br />

A_CM_<br />

REL_COMP<br />

NULL<br />

US_<br />

Release<br />

A_CM_<br />

SERV_REL<br />

Figure 19.9.2/1 (sheet 4 of 4)<br />

Page 531<br />

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

US_UNST'D_<br />

SS_REQUEST_<br />

ind<br />

US_<br />

Release<br />

A_UNST'D_<br />

SS_REQUEST_<br />

req<br />

Wait_for_<br />

ussdr_cnf_2<br />

A_UNST'D_<br />

SS_REQUEST_<br />

cnf<br />

US_UNST'D_<br />

SS_REQUEST_<br />

rsp<br />

Wait_for_<br />

USSD_Appl<br />

A_CM_<br />

REL_COMP<br />

NULL<br />

US_<br />

Release<br />

A_CM_<br />

SERV_REL

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