Extentions
“Extension” - is the extension of the telephone line (PBX) or the Centrex system. It works as an association and allows calling to certain telephone sets without the necessity of dialing the telephone number, but only by dialing a short combination of digits, reaching the desired subscriber.
The program asking you to enter the extension number of the person or department you are trying to reach. When the caller enters an extension number, the system asks the name of the caller in order to inform the called party about an incoming call, presenting the caller.
Callcentric
Callcentric is a service that lets you make free phone calls to other Callcentric members and to traditional phones world wide at great rates. Callcentric uses your internet connection and software on your computer or a telephone adapter to place calls us
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