All of them. (We never charge à la carte.) You get Automated Attendant, Blacklists, External Call Transfers, Call Detail Records, Situational Call Forward, Call Monitoring, Call Parking, Call Queuing, Call Recording, Call Retrieval, Call Waiting, Customizable Call Routing, Caller ID, Blocking Caller ID on Call Waiting, Dial by Name, Do Not Disturb, Music On Hold, Music On Transfer, Remote Call Pickup, Roaming Extensions, Route by Caller ID, Three-way Calling, Voicemail to Email, and International Numbers.