I'm going to inform my old customers by SMS. Which company is better for sending short messages in groups?

Generally speaking, the professional SMS platform is geographically independent, and its business can directly cover the whole country, without having to find local services. In fact, what is important is the price, service and effect arrival rate. A good SMS platform has a low interception rate, and the price is still low if the base is large. The service the company is using now is very good. ..

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