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Hulbert & Berghoff LLP (57) ABSTRACT A System and method for providing advertising and adver tising Services using a telephone System. A data network telephony System includes a commercial message Server that communicates with a telephony connection Server to com municate commercial messages to display devices on data network telephones. A caller uses the data network tele phone to make a telephone call to a callee. The commercial message Server receives information about the connection and retrieves commercial messages, or advertisements to communicate to either the caller, the callee or both.