The VTech CS6209 DECT 6.0 Accessory Handset for use with models CS6219&CS6229 features Vtech DECT 6.0 Accessory Handset with Caller ID and Handset Speakerphone, Accessory Handset for CS6219 & CS6229, Caller ID / Call Waiting, Handset Speakerphone, 50 Name and Number Phonebook Directory,1 Accessory Handset that can be used to expand models CS6219 or CS6229,Answering Machine not included, Single Line, Cordless and DECT 6.0 Digital technology.