Accessing deCONZ siren options

I have a Conbee 2 stick which I integrated with Home Assistant via deCONZ. I also have the Develco A/S SIRZB-110 siren. If I open the deCONZ application through VNC I’ve got a couple of options I can choose. One of these is “squawk” to let the siren beep shortly. But I can’t seem to access that through Home Assistant, the only option is “on” or “off”. Home Assistant recognizes it’s a siren entity.

The “supported_features” in Home Assistant is also 19 which indicates that the only extra feature is duration. How can I access the other options? How do I need to “call” the deCONZ integration to let the siren squawk?