Hii!
Barriers to communication are-
* Physical barriers
* Language barriers
* Personal barriers
* Technical barriers
* Psychological barriers
* External barriers
* Organisational barriers
Etc.,
To remove communication barriers, one needs to be aware of the technical problems that may arise, must know about the different cultures, must use a communication app, avoid slangs, practise open mindedness etc.,
Hope this helps.
Good luck!