UX390 TRI-MODE SpeedTalk SM • SpeedTalkSM (ST) – instantly speak with 1 or up to 25 people† • View Detailed Availability of ST Contacts† • Create up to 250 ST Contacts & 50 Groups Total† VOICE/AUDIO • Full-Duplex Speakerphone • Large, Forward-Firing Speaker • Speaker-Independent Voice Recognition – make calls & access other essential features • Voice Commands: Call Someone, Voice Mail, Digit Dial, Service Alerts, Missed Calls, Contacts, Driving, Announce, Time and Date, Phone Status • MP3 Ringtone Suppo