The call should drop after reaching a specific limit of the queue without giving the caller an option to leave a voicemail
- Create a new Auto attendant,
- Name the Auto Attendant a relevant name, select the site which you want to set up the AA for,
- Go to the section Call Handling Menus, here under Main Menu select Edit settings,
- The below window will appear, in here from the drop down under And Then select the action to Hang up and click Save.
- After that go the desired call queue and in call forwarding rules edit when the queue is full and choose selected user or service and then point to the newly created auto attendant.