:Stonepeak said on Friday it would buy Intrado's emergency call-routing services unit in a $2.4-billion deal, as the alternative investment firm ramps up its bets on the telecom sector. Intrado, owned by Apollo Global Management Inc, is a technology services company with operations in the United States, Canada, the Middle East and other regions. Its telecoms unit provides 911 call-routing services and a network for data sharing among critical public emergency websites. This year's rout in equities and a drop in stock valuations has offered private equity firms an opportunity to buy companies cheap.