The Advantages of Stand-Alone Echo Cancellation Systems in Telecommunications Networks

There are frequent debates over whether it is best to implement the echo cancellation function as an independent stand-alone element, or as a feature that is an integral part of a network switch or voice operated coder (vocoder) system. This paper highlights the differences between stand-alone echo cancellation products and switch/vocoder-integrated echo cancellation systems, describes the trade-offs when choosing the best configuration (stand-alone vs. integrated) for various applications, and objectively analyzes the topics of cost, feature upgrade, network growth, and performance for each configuration.

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