When a business message, sent from a caller's phone, is recorded in the recording/playback section, the main control section makes a judgement as to whether or not any phone number that coincides with the caller's phone number contained in caller's information received by the caller information receiving...http://www.google.de/patents/US6330314?utm_source=gb-gplus-sharePatent US6330314 - Answering machine/phone for controlling a display based upon caller ID information received from callers
