May - 19th

Telecommunications Terms – a glossary

Posted at 11:26 am | Filed Under telecom

A  key system has multi-line phones with keys that you  press to get dial tone on a specific line from the phone company’s Central Office  (CO), or to answer a call. In smaller key systems, incoming calls  usually ring at several — or all — phones. In bigger key systems, calls  usually go to the […]

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