tandem central office

tandem central office

[′tan·dəm ′sen·trəl ′ȯf·əs]
(communications)
A telephone office that makes connections between local offices in an area where there is such a high density of local offices that it would be uneconomical to make direct connections between them. Also known as tandem office.
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References in periodicals archive ?
The next generation network product is designed to initially serve as a replacement to Class 4 or tandem central offices.