Joke Collection Website - Blessing messages - How does telecom get free traffic by sending short messages?

How does telecom get free traffic by sending short messages?

Telecom Internet Package Processing SMS Instruction

KTLL 10

KTLL20

KTLL30

KTLL50

KTLL 100

What are the numbers behind? How much is the parcel? For example, 10 means 10 yuan, and the set meal is 60M.

According to the traffic package you choose, send it to 1000 1.

Baidu wallet 1 cent 100M mobile phone traffic

/? Invitation code =BWBRSBD2