Does the big dipper know everything by texting?

I see. The big dipper sent a text message, and everyone else knew. When sending Beidou satellite messages, it is a different interface from ordinary SMS sending and receiving. Every time a message is sent, a message card is generated. From the message card, in addition to the receiver and the short message content, detailed Beidou satellite positioning information will be attached, and the message sending status is at the bottom of the card.