| Definition: | an aggregate of switching equipment and auxiliary apparatus at a telephone node enabling connections to be established by individual users
NOTE – The French term "commutateur" is, strictly, the smallest switching entity having a unique designed function due to its control network. In this meaning, a local switching entity is defined by a given sequence of digits included in all its subscriber numbers. The corresponding English term is "switching entity". The term "central" is sometimes ambiguous because of its
correspondence either to "commutateur", either to "centre de commutation".
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