Cellular Communications Inc has agreed to sell some equipment to a non-wireline cellular operator for about $11.3m as part of its changeover to Northern Telecom Ltd equipment in its Southern Ohio system: since the sales price of the old equipment is less than its book value, the company will take a one-time book loss of about $9m; replacement of the present equipment with the Northern Telecom kit will be done in stages but should be completed by the end of 1989; the cost of the new equipment, at about $13m, is only about $2m more than the firm will get for the equipment being sold, and as prices of cellular network equipment have declined dramatically, it is costing $10m less than the equipment being sold.