Knowledge BaseAudian Phone ArticlesHardwareVoIP PhonesPolycomPolycom PhonesCCX SeriesCCX 400voiceUpdated 2/4/2026CCX 400 Welcome to Audian's Knowledge Database Overview:This landing page is a collection of articles and information about this phone.How To - Access Call History/Recent Calls How To - Add Contacts to phone's directory How To - Check Voicemails How To - Enable Do Not Disturb (DND) How To - Make a Conference/3 way call How To - Park Calls How To - Place Call on Hold How To - Setup Call Forwarding - CCX 400 How To - Transfer calls (Warm and Cold) Migrated from Confluence on 2026-02-03 Original Confluence Article