Voice over Packet technology is designed to break down the barrier between traditional public switched telephone networks (PSTN) and data (ATM or IP) networks. The concept of transporting voice across packet backbones is an important building block of the so-called “Next Generation Network” infrastructure or NGN for short. This white paper compares the attainable QoS of Voice over IP (VoIP) and Voice over Asynchronous Transfer Mode (VoATM) packet technologies as investigated by various carriers and equipment manufacturers today.
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