How do I manage unidentified callers?
Anyone who dials in to the audio conference from a phone but does not enter an Audio PIN is known as an "unidentified caller". GoTo Meeting cannot identify them by name so it views them as a separate participant. These callers are displayed in the attendee list as "Caller X".
Notice: This article addresses the new GoTo app experience. View How do I manage unidentified callers? (Classic) or How do I manage unidentified callers from my Android? for the classic experience.