How to check the travel track through SMS 202 1 SMS 202 1 operation steps?

1. After turning on the SMS function, click the phone to send a new SMS.

2. In the "Edit SMS" page, enter the customer service phone number of the calling card as the recipient.

3. Edit the SMS content as CXMYD.

4. After editing the message, click Send Mail.

5. According to the prompt in the received SMS, enter the last four digits of the ID card of the inquiry number holder.

6. After entering the last four digits of your ID card, you will receive the number 16-30 from customer service.