Can I restrict conference audio to computers (VoIP)? Kim Smith March 17, 2018 06:03 Follow To allow only computer (VoIP) access to session audio, 1) click on the Advanced Settings menu and 2) deselect "Enable phone when audio starts." 3) Then click on Start Audio. This sequence of steps creates a VOIP-only meeting. Have more questions? Submit a request 0 Comments Please sign in to leave a comment.