What is the name of the machine that specially inserts mobile phone cards?

Fast and convenient short message device. This kind of equipment is mainly used to send and receive short messages in batches. The equipment is divided into three models: 8 cards, 16 cards and 32 cards, all of which can send and receive short messages online at the same time. This kind of equipment that specially sends and receives short messages in batches is called fast and convenient short message equipment. Easy SMS adopts a brand-new remote module, which supports 24-hour uninterrupted operation, and 32 cards can send and receive 30,000 SMS messages in 1 hour at the same time. If 32 cards are not enough, a computer can bring up to four 32-card short message sending devices, so that 128 cards can send and receive short messages at the same time.