Is there any service in China Telecom that can let me know whether the short message sent to the other party has been successfully received? What is the specific service?

SMS receipt refers to the business that customers receive the receipt message immediately after sending the message with China Telecom's mobile phone. The contents of the receipt include the status information and additional information of whether the receiver successfully received it. The length of additional information is limited to 44 characters (including punctuation marks), and the content involves cultural entertainment, life health, practical knowledge, hot events and other fields. Understand and check. For more service benefits, click on "official website" customer service 222 below to answer your questions.