We are implementing new features in our production facility to help with employee safety. One idea that came to mind would be having special phones around the facility with buttons that, when pressed, would trigger an emergency alert sound or message to all other phones in the building via multicast paging. Something like "There has been an emergency, please proceed to the exits if safe to do so."
While we can get a purpose built system for this, we just wanted to see if the phones could do it since we already have the infrastructure in place.
Support wasn't able to recommend a solution, so wanted to see if the community had ever done something similar that isn't part of the official feature set.
Thank you in advance.