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A Telephone Cable is an incoming line of a telephone, connected to a telephone to make a call. It has two cores and four cores.Conductor material is divided into copper clad steel, copper clad aluminum and copper, copper conductor is the best.
The common specifications of the telephone cable have two core and four core, the cable diameter has 0.4 and 0.5 respectively, some areas have 0.8 and 1.0.
In addition to the two and four cores, there are four, six, eight, and ten cores.If the general family is the local telephone use mode, 2 cores is enough to use.If the telephone is used by a company or part of a group, it is recommended to use a 4-cell line in consideration of the need for telephone broadband, and a 6-cell line is recommended if a digital telephone is used.