What are the characteristics and differences between gateway SMS and card SMS?

There are two ways to send SMS: one is "gateway SMS", and the received SMS numbers are SMS numbers starting with 106, 02 1, etc. The normal gateway transmission way is to take the channels of mobile, China Unicom and telecommunications. The sending speed of the gateway is several hundred times higher than that of the card. With the Internet, 1000 messages can be sent in one minute, and the messages sent by the gateway will not be intercepted by the spam message interception platforms of China Mobile and China Unicom. The other is "card sending SMS", which is sent by SMS cat or application, and the displayed SMS number is the ordinary mobile phone number. The success rate of issuing cards is about 50%-60%, and the price of "issuing short messages" is cheaper than that of "gateway".