VTech CS6909 Accessory Cordless Handset for VTech 6919-x or 6929-x Series Cordless Phone Systems, Silver/Black Accessory handset onlyrequires a 6919-x or 6929-x series phone to operate 50 name and number phonebook directory Conference between an outside line and up to 2 cordless handsets Trilingual promptschoose between English, Spanish and French