近日，上海联通推出１９３长途电话业务。据悉，１９３长途电话业务在每晚１０时到次日７时的优惠时段里，每６秒钟只收３分钱，合计一分钟３角钱，而且免收市话费，因此比使用IP电话卡还便宜。与联通前一段时间推出的１９３长途电话卡不同，申办该业务后，打长途电话时，不用 Recently, Shanghai Unicom launched 193 long-distance telephone service. It is reported that 193 long-distance calls business in every night from 10 pm to 7:00 next day discount period, only every 6 seconds to receive 3 cents, a total of three cents a minute, but also free of charge, so the use of IP phone cards also Cheaper. And China Unicom launched some time ago 193 long-distance calling card is different from the bidding business, make long-distance calls, do not have