Make sure to discuss with the reviewer how you will communicate in the future. Any means will do. We use messengers, emails or phone calls, for example. Sometimes, we organize a conference call, inviting all the linguists that work on the project for the specific client. This way, recommendations and instructions from the reviewer are sure to get to everyone, and everyone is sure to have a chance to ask direct questions. If there are many participants, or you’re expecting a heated discussion, it’s best to set a moderator—the project PM would do perfectly, for example.