Can I use a signal in CallActivity?

I try to use signal in callactivity,but It does not work.There is no data in the act_ru_event_subscr table.

Hi.

You can find an example of call activity signal in the jUnit tests. e.g. https://github.com/flowable/flowable-engine/blob/f3c20f8d2b34e54473d3a83e37debe23e50da330/modules/flowable-engine/src/test/java/org/flowable/engine/test/bpmn/event/signal/SignalEventTest.java#L340

Regards
Martin