Busy Tone
Tone used to indicate that the called party is busy.
Call Back
A TalkSwitch feature which, once activated, instructs TalkSwitch to call you back at a preset
Call Forward
A TalkSwitch feature which forwards calls to one of 8 or more Remote Extensions.
Caller ID
A service provided by telephone companies which transmits information about incoming calls (callers name and telephone number).
Call Waiting
A service provided by telephone companies which allows you to accept a second incoming call on a telephone line that is already in use. Call Waiting allows you to ‘toggle’ from one caller to the other.
Centrex/Plexar
Central Office Exchange Service. A type of PBX service offered by the telephone company on a ‘pay per service’ basis. All call switching occurs at a local telephone station instead of a company’s premises; Service may not be
available from local telephone company.
CNG
A ‘chirping’ tone emitted by fax modems and most fax machines to initiate contact with another fax machine/ modem.
COM Port
Communications Port. Internal virtual pathways used to transmit data to and from a PC’s exterior Serial Port and software running on the PC. The majority of PCs have four Com Ports: COM1, COM2, COM3, and COM4. Most software programs gain access to the COM Ports via system interrupts (IRQs) and only two IRQs are reserved for the four ports. If you have two devices using COM Ports that share an IRQ, you cannot use the devices simultaneously. Typically, COM1 and COM3 use IRQ4, while COM2 and COM4 use IRQ3.
Communications Software Software that makes it possible to send and receive data over telephone lines via modems.
Compression (Data)
Storing information in a format that requires less space than usual. Compression saves transmission time, capacity and storage space.
Computer Telephony Integration Refers to systems that enable a computer to act as a call
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