7.4.1 Functional requirements of serving MSC
23.0183GPPBasic call handlingRelease 17Technical realizationTS
7.4.1.1 Process Subs_FSM
One instance of the process Subs_FSM runs for each subscriber who is involved in at least one call. It monitors the state of any ongoing calls for that subscriber. The individual call control processes OCH_MSC and ICH_MSC submit supplementary service requests received from the MS to the process Subs_FSM, which then responds appropriately.
The process Subs_FSM interacts with the processes OCH_MSC and ICH_MSC as specified in clauses 7.1.1 and 7.3.1.
Sheet 5, sheet 6, sheet 7, sheet 8, sheet 9, sheet 11, sheet 12, sheet 15: processing on this page will occur only if the VMSC supports HOLD.
Sheet 8: the procdure Handle_MPTY is specific to MPTY; it is specified in 3GPP TS 23.084 [17].
Sheet 8: the procedure Handle_ECT_Active is specific to ECT; it is specified in 3GPP TS 23.091 [22].
Sheet 10: processing on this page will occur only if the VMSC supports Multicall.
Sheet 12: the procedure Handle_ECT_Alerting is specific to ECT; it is specified in 3GPP TS 23.091 [22].
Sheet 13, sheet 14: processing on this page will occur only if the VMSC supports both HOLD and Multicall.
7.4.1.1.1 Macro Check_Ongoing_Calls
7.4.1.1.2 Macro Update_Non_Speech_Calls_Status
7.4.1.1.3 Macro Increment_Call_Counter
7.4.1.1.4 Macro Decrement_Call_Counter
Figure 83a: Process Subs_FSM (sheet 1)
Figure 83b: Process Subs_FSM (sheet 2)
Figure 83c: Process Subs_FSM (sheet 3)
Figure 83d: Process Subs_FSM (sheet 4)
Figure 83e: Process Subs_FSM (sheet 5)
Figure 83f: Process Subs_FSM (sheet 6)
Figure 83g: Process Subs_FSM (sheet 7)
Figure 83h: Process Subs_FSM (sheet 8)
Figure 83i: Process Subs_FSM (sheet 9)
Figure 83j: Process Subs_FSM (sheet 10)
Figure 83k: Process Subs_FSM (sheet 11)
Figure 84l: Process Subs_FSM (sheet 12)
Figure 84m: Process Subs_FSM (sheet 13)
Figure 84n: Process Subs_FSM (sheet 14)
Figure 84o: Process Subs_FSM (sheet 14)
Figure 84p: Process Subs_FSM (sheet 14)
Figure 84q: Process Subs_FSM (sheet 14)
Figure 84r: Process Subs_FSM (sheet 14)
Figure 85: Macro Check_Ongoing_Calls
Figure 86: Macro Update_Non_Speech_Calls_Status
Figure 87: Macro Increment_Call_Counter
Figure 88: Macro Decrement_Call_Counter