bn:01319541n
Noun Concept
Categories: Telephone exchange equipment
EN
Class-5 telephone switch  Class 5 telephone switch  Class 5 telephone switches  end office
EN
A class-5 telephone switch is a telephone exchange in the public switched telephone network that directly serves subscribers and manages subscriber calling features. Wikipedia
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EN
A class-5 telephone switch is a telephone exchange in the public switched telephone network that directly serves subscribers and manages subscriber calling features. Wikipedia
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