Joke Collection Website - Public benefit messages - How does Unicom check how many free text messages it uses?

How does Unicom check how many free text messages it uses?

Edit SMS

705

Send to

100 10

Is to check the traffic used before midnight and the remaining traffic.

Call 100 10.

Press 1-2 when prompted.

-1-3 will send you the usage flow and remaining information by SMS later.

Or dial 100 10 directly.

turn

Manual business