A circuit for a telephone such as a mobile radiotelephone. The circuit has a memory for storing phonebook items and for storing group attributes associated with phonebook items, a connection to a radiotelephone receiver for receiving telephone calls and calling party identifications, and a controller for selecting the disposition of received calls. An operating mode is selected (45) from a plurality of operating modes, e.g. “Personal”, “emergency”, “personal-plus-emergency”, “all calls”, “no calls”, etc. A received calling party identification is compared (42) with a phonebook item, and a disposition for a received call (46, 47, 48, 49) is selected dependent on a group attribute for that phonebook item and a present operating mode.