An electronic device that answers the telephone and records messages WordNet 3.0 & Open English WordNet

An answering machine, answerphone, or message machine, also known as telephone messaging machine in the UK and some Commonwealth countries, ansaphone or ansafone, or telephone answering device, is used for answering telephone calls and recording callers' messages. Wikipedia

Device for automatically answering telephone calls and recording messages left by callers. Wikipedia Disambiguation

Device to record caller messages Wikidata

A machine that take messages for you when you cannot answer the phone. OmegaWiki

A device that automatically records voice mail from unanswered telephone calls. Wiktionary

Device that automatically records voice mail. Wiktionary (translation)