For in-person meetings, I am constantly watching for people who raise their hands or try to get a word in. If necessary, I cut the people monopolizing the conversation and make sure those people get a chance to speak. For the wallflowers at the meeting I make sure to reserve some time at the end when people who haven't spoken get a chance to speak up.
For online meetings (Skype), the manager has to watch time and interrupt people where necessary. It is very easy someone to go on a monologue during Skype meetings. Again, listening for people trying to get a word in is the managers responsibility.
Every now and then, a team gets an employee who is disruptive, constantly interrupting the flow and going off on tangents. For those employees, the manager has to bring the non-productive behavior to their attentive offline and suggest changes. In extreme cases, where the behavior persists and is ruining the team environment, that person has to leave the company.
In short, your manager is responsible. Talk to him/her.