Joke Collection Website - Public benefit messages - How does Unicom send text messages to check Internet traffic? Is there a charge for texting?

How does Unicom send text messages to check Internet traffic? Is there a charge for texting?

1, you can send a short message "TCYL" to 100 10 to inquire about the package balance information.

2. Send a short message "CXLL" to 100 10 to inquire about traffic usage.

You can also inquire through the online business hall and the mobile phone business hall client. Sending short messages to 100 10 is free.