The contact record component that must be present so users can see a visual representation of their emails and phone calls with a contact is the Activities Timeline. The Activities Timeline shows a chronological list of past and upcoming activities related to a record, such as emails, calls, meetings, tasks, and events. Users can see the details, status, and attachments of each activity, and also create, edit, or delete activities from the timeline. Activity Capture is a feature that automatically syncs emails and events between Salesforce and email and calendar applications, but it does not show a visual representation of them on the contact record. Salesforce Inbox is a product that enhances email and calendar productivity with Salesforce integration, but it also does not show a visual representation of activities on the contact record.