How does SMS protect customers' rights and interests?

Whether the punctuation mark of your short message exceeds 70 words, Unicom's short message is 1 with a maximum of 70 Chinese characters, exceeding 2, and so on. If the other party receives one, and the other party's mobile phone may support long short messages, then your short message will be displayed on the other party's mobile phone. If not, you can go to Unicom business hall or call 10 10 with the sent SMS content and your SMS list.