Motorola C401i cordless for locating anywhere within range. 50 Name and Number phonebook. Speakerphone for hands-free conversations. Caller ID shows you who’s calling and see details of the last 40 callers in a Calls list.* Redial up to 10 of the last numbers called. Register up to 5 handsets to a single base and register each handset with up to 4 different bases. Make internal calls and transfer external calls between handsets. Choose from 10 different ringer melodies for internal and external calls as well as numbers stored in the phonebook