The committee discusses recommended revisions. The chair facilitates this discussion, resolving conflict should it arise. R evisions are almost always requested during the oral. You should expect this and not become defensive. Your committee is simply helping you to produce the most academically sound research document possible.
Chair confirms final recommendations.
Committee formally votes on the document. Chair reviews document processing logistics. Follow-up and Move Forward Contact your committee chair immediately following the conference call to review recommendations and requested revisions. Don't lose momentum. Even if the revisions are extensive, it is advantageous to make them immediately while they are still fresh in your mind.