(Telecompaper) Sprint reported another strong increase in EBITDA for its fiscal second quarter to September and raised its annual forecast again, driven by cost reductions and higher hardware revenues. The company said it returned to underlying growth in wireless service revenue for the first time in nearly five years, excluding the impact of the new revenue-recognition accounting standards. However, its customer base was down by 20,000 compared to June, as losses at wholesale and reseller customers offset a net increase of 95,000 in retail subscribers.