Which enterprise in Hefei has done a good job in mass SMS platform?

Hefei's SMS platform is not very clear. If it is a unit docking, the scope can be expanded, because the SMS platform has no geographical restrictions. When choosing a short message platform, we can pay attention to several points: whether the price is reasonable, whether the speed is fast, whether the arrival rate is high, whether the channel is stable, whether free testing is supported, whether there is a charge for successful transmission, and whether there is a refund for failure.