Training for inter team communication

Hi all

Our team of about 10 is broken up geographically so we communicate a lot by Teams, and in ticket notes. Some friction is staring to develop due to the writing styles among the team.

Does anyone have a good course recommendation we can do to help with this?

Basically techs are asking each other to do certain tasks, tech being asked thinks the one asking is being rude and things like that. In all cases, it's just the communication style letting them down.

Thanks!