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The plain old telephone service (POTS) is used for establishing a communication session between two users. A telephone feature, such as call waiting (cw), call forward on busy (cfb), and three way calling (3wc), is defined as an added functionality of POTS. Augmenting POTS with a small set of features is considered to be a technically straightforward job.(More)
This paper reports on some initial results in using LOTOS as a hardware description language. LOTOS, the Language Of Temporal Ordering Specifications, is a language that has been conceived in the framework of Open Systems Interconnection (OSI) standardization as a tool for the formal description of OSI services and protocols. We present some examples to(More)
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