Refers to a telephone network with four-wire cabling instead of the conventional two-wire cables typically used in phone systems. A four-wire circuit allows users at two locations to talk and be heard simultaneously. The four-wire circuit usually avoids problems of echo and leakage associated with two-wire telephone circuits.
Would you like information like this delivered to your email inbox? Subscribe to Tradeline Updates to keep abreast of the latest conference developments, industry news, best practices and more!