VTech TR05-2013 FoneDeco Accessory Cordless Handset, Blue | Requires a VTech TR1-2013, TR16-2013, or TR17-2013 Series Cordless Phone System to Operate Full duplex handset speakerphone 50 name and number phonebook directory Conference between an outside line and up to 2 cordless handsets Last 10 number redial Trilingual promptschoose between English, Spanish and French