Overview This chapter is dedicated to training on the various features of the Polycom VVX 400. Above each video are step-by-step instructions that correspond with the videos, though in some cases they may be more detailed. The video player is controlled by buttons located at the bottom. Their functions are as follows: (1) Play/Pause, (2) Timeline Slider, (3) Volume Slider, (4) Fullscreen . Table of Contents Dialing Options Direct Dial Speakerphone Dial Headset Dial Handset Dial Incoming Call Functions Answering Pre-answer Functions On Call Functions Active Call Functions Transferring Transferring to Voicemail Conference Call Method 1 Conference Call Method 2