A main phone of a cordless telephone unit has i) a cordless communicator for establishing cordless communications with a cordless handset; and ii) a voice generator for converting called-party information received from a cordless handset into voice data. On the other hand, a cordless handset has voice-data output section for reading out the voice data. Called-party information received from the cordless handset is converted into voice data at the voice generator then returned to the cordless handset. Receiving the voice data from the main phone, the cordless handset reads it out prior to placing a call. Sharing the voice generating function of the main phone with the cordless handset can thus provide the handset with a voice-generator-free structure.