Watch a film of most meetings, heck, just sit in most meetings and notice how the chair catches the eye of the most important people in the room whilst others struggle to be heard.
When women aides first joined the White House team they found it hard to be heard over the din of the strong male campaigners. They used a technique called amplification. Maybe Joan says something but the conversation flows on as if she hasn't spoken. Other women will then contribute too, drawing attention to Joan's point and adding to it. Have a look at how the women on Obama's staff made sure their voices were heard.
Reflecting on this, I think it's a technique I'll include when working with people who want to practice inclusive leadership and offer not just to women but others who are seldom listened to.