What do Internet SMS and Smart SMS mean to withdraw cash?

Network SMS and smart SMS recall are the functions of SMS recall by mistake. According to the relevant public information inquired, the privacy withdrawal of smart SMS refers to the function of withdrawing the wrong SMS within 6 seconds. In Huawei smart phones, if you send a short message by mistake, you can cancel the sending setting in the settings and withdraw the short message within 6 seconds. The current time can only be withdrawn within 6 seconds, and messages beyond this time cannot be withdrawn. To sum up, online SMS and smart SMS are both functions of returning SMS by mistake.