Importance

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Abstract

A system and method of affecting transfer of a message such as a voice message from one centralized messaging system in a first switched telephone network to a centralized messaging system in a remote second switched telephone network wherein each of said telephone networks includes central offices connected to subscriber terminals. The message is inputted in analog form into one of the terminals connected to the first telephone network and stored in digital form in the centralized messaging system in that network. The message is then transferred from that centralized messaging system to the centralized messaging system in the second telephone network where it is stored. The message is then delivered by retrieval or an outgoing call to an addressee terminal in the second telephone network. The transfer between telephone networks and their respective centralized messaging services occurs via an internetwork to which each of the centralized messaging systems are connected. The transfer occurs through connectionless packet signaling using TCP/IP protocol.

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First Claim