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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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No<br />

OK<br />

A-SETUP<br />

`Start Timer<br />

T1`<br />

WAIT_FOR_<br />

_CONFIRM<br />

A_CALL_<br />

_CONF<br />

'Reset<br />

T1'<br />

'Assignment<br />

req?<br />

5<br />

Yes<br />

'Perform<br />

Assignment'<br />

3<br />

1<br />

See <strong>GSM</strong> 08.08<br />

MAP_PROCESS_<br />

CALL_WAITING_Ind<br />

Check_<br />

_Indication<br />

1<br />

A_DISC<br />

`Set UE =<br />

Busy<br />

Subscriber`<br />

4<br />

Error<br />

See Section 21.2<br />

Busy condition<br />

is UDUB<br />

Page 441<br />

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

MAP_PROCESS_CALL_WAITING_cnf<br />

MAP_DELIMITER<br />

Figure 18.3/4 (sheet 1 of 3): Macro PROCESS_CALL_WAITING<br />

2<br />

4<br />

'T1 Timer<br />

Expiry`<br />

I_REL<br />

OK

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