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S:\Hp8960\E1962B CDMA 2000\Pi Release\Reference Guide\Chapters\cdma2000_prog_sync_callstate.fm
Call Processing State Synchronization
Call State Change Detector
This feature provides a method for holding off the
results until a change in call
processing states is detected. Arming the call state change detector is useful only for mobile station originated
calls or disconnects only. It is armed automatically when call processing functions originating from the test set
are requested.
The call state change detector becomes
disarmed
when any of the following conditions have been met:
• the call processing state has changed to either connected or idle
or...
• the attempt to connect or disconnect a call has failed, and one of the test set’s Fixed Timers has timed out
or...
• no call processing state changes occurred within the time period specified by the
.
The following command arms the call state change detector:
OUTPUT 714;”CALL:CONNECTED:ARM[:IMMEDIATE]”
Example 23. Mobile Station Originated Call - Arming the Change Detector
The following example illustrates the use of the call state change detector along with the connected/idle query
to synchronize a controlling application with a call processing state change during a mobile station originated
call.
When the CALL:CONNECTED:ARM command is received by the test set, the detector becomes armed and
configures the test set to hold off on returning a result for the CALL:CONNECTED:STATE? query until the
detector is disarmed by one of the three events described above.
10 OUTPUT 714;”CALL:CONNECTED:TIMEOUT 10S” ! Sets the time out
20 ! time to 10 seconds.
30 OUTPUT 714;”CALL:CONNECTED:ARM” ! Arm the change detector.
40 DISP “Make a mobile station orginated call. Continue when done.”
50 PAUSE
60 OUTPUT 714;”CALL:CONNECTED:STATE?” ! The connected/idle query.
70 ENTER 714;Call_connected
80 IF Call_connected=1 THEN
90 DISP “Call is connected.”
100 WAIT 2
110 ELSE
120 DISP “Call is not connected.”
130 WAIT 2
140 END IF
150 END
Call State Change Detector Timeout
If a state change does not occur, the user needs a way to control how
long to wait for the change detector. The change detector is disarmed by the timeout timer. After a timeout, the
connected/idle query will return a 1 for connected or a 0 for idle. The timeout timer is user settable, but the
user setting is only applied during mobile station originated call processing operations. For base station
originated call processing operations, the timeout timer is automatically set to 60 seconds by the test set.
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