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History of Telephone Separations
Telephone Separations 19301943
Telephone Separations 19441955
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annual apportioned apportionment Associated Companies average basis Bell System board-to-board book cost carrier Charleston Circuit Mile cost allocation dial switching dial switching equipment direct assignment effect estimated exchange plant exchange rates exchange service expenses extended area service facilities factor FCC Docket federal Federal Communications Commission grade of service Illinois Bell inter interstate earnings interstate message toll interstate rate interstate revenue requirements interstate toll rates intrastate revenue jurisdictional Long Lines message toll rates million Modified Phoenix Plan NARUC Proceedings Northwestern Bell percent plant investment private line proposed PUR NS ratepayers regulators regulatory commissions relative Report separations changes separations methods separations principles short-haul Southern Bell staff station equipment station-to-station Table tele telephone company telephone cost telephone plant telephone rate telephone separations telephone service tion toll business toll call toll costs toll lines plant toll messages toll minutes toll rate disparity toll rate reduction toll revenues toll services trunks