IP based public addressing system

Question

We are trying to create an IP based PA system for my institution. Our first hunch is to use an asterisk server with clients in auto-answer mode. Is there any better method, or a more apt open source framework? Our internal network is fiber backboned with mostly *nix systems.

Answer 1

You might want to start looking at an RWALL command as a framework and instead of text send audio files.

Conversely you can have a very simple multicast server and client that does exactly the same thing.

Security would be your biggest concern since both approaches are inherently insecure.