举例来说,中国电信的预存话费换手机活动中ME811手机的价格为4580元,我们选择预存2400元一档的方式,4580元减去2400预存款等于2180元购机款。手机里面实际有话费应该是2400元+600元(赠送),然后每个月消费需289元,每个月到账125元,24个月一共返还3000元,其中包含了赠送的2400元+600元。最终我们每个月还要充值/缴费164元。这样算下来,最终我们 For example, China Telecom’s stored calls for mobile ME811 cell phone activities in the price of 4580 yuan, we choose to save a 2,400 yuan a file, 4580 yuan minus 2400 pre-paid equal to 2180 yuan purchase money. The actual phone bill there should be 2400 yuan +600 yuan (gift), and then consume 289 yuan a month, 125 yuan a month, 24 months a total return of 3,000 yuan, which includes a gift of 2400 +600 yuan. Ultimately, we still have to recharge / pay 164 yuan a month. In this way, eventually we