I found a workaround for this. In the Call Queue settings go to "Pick up settings & members" and add your users and they'll have a button on the phone or the RC client a button on the HUD. And in the settings, for the pick-up settings & members, you can change when the button alerts the users.
- On the phone, it'll flash red if another call is coming in while on a call from the call queue or any call. On the RingCentral app, it rings and lets you know with a pop-up and it plays whatever ringtone you've selected in the settings. Unfortunately, it doesn't ring the phone while on a call so users will have to pay attention.
- If the users are using the softphone option it works the same but you can answer calls and put them on hold.
If you have more questions about this let me know. Or and new findings also let me know
