dialback modem
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callback modem — Also known as a dialback modem. A special modem that does not answer an incoming call, but instead requires the caller to enter a code and hang up so that the modem can return the call. As long as the entered code matches a previously… … Dictionary of networking
auto-answer — A feature of a modem that allows it to answer incoming calls automatically. See also answer mode; dialback modem … Dictionary of networking
