How to stop people from interrupting you
Disturbing others is a common bullying method used by those who want to prove their authority and instill insecurity in you, particularly in a business environment. Staying silent and not raising your voice are the best strategies for maintaining your position.
Rather than giving in to their attempt to silence you, just carry on speaking at just the same volume and cadence as before. They’ll feel uncomfortable about being ignored, which will probably cause them to stop talking quite soon.