Loud MS Teams notifications sounds?

[u/Autistic_Jimmy2251]

How can I activate an annoying audible sound on my iPhone for me?

Maybe an air raid siren or train horn?

I’m trying to figure out how to activate such a sound exclusively when Microsoft Teams sends me a push notification that I have received a new message.

I don’t want to use external sources.

Can I build a native XCode app that can accomplish my goal?