How many message receipt tips will the mobile phone receive when sending messages in groups?

When sending a group, you will receive the first message receipt and the last summary message receipt, as well as all failed and undelivered message receipts. When sending a group, the system judges and handles it like this: the first receipt (whether it is sending a bill or sending a group) will be sent immediately, and then the system will wait for a period of time (usually 30 seconds) and monitor that a short message is being sent, which will block the successful receipt, but will send the failed or undelivered receipt in time. Finally, the system will combine all the receipts of successful delivery into one delivery. 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. It is suitable for China Telecom Tianyi mobile phone users, and can be handled through SMS, Huan go website and handheld business hall. Monthly rental fee 3 yuan/month. For more service offers, click on "official website" Customer Service 2 18 below to answer your questions.