I added the text message. Why did my customer dial and say that he couldn't receive this message?

I can't get the hang-up message. There are several things to check: 1. Confirm that the service status is activated. 2. Confirm that the content of the SMS to be pushed has been approved. 3. Confirm that the call time is within the SMS service period. 4. Confirm that the group to which the called number belongs has set the SMS content and service time. 5. Check whether the number of packages has been sent. 6. Check whether the number of messages sent to the same caller on the same day reaches the limit. 7. Check whether the calling number is on your blacklist. 8. It is also possible that the municipal public blacklist of the incoming number of on-hook SMS refuses to receive local on-hook SMS. Thank you for your interest in telecom products. I wish you a happy life. If the above information can't solve your problem, you can also log in to Guangdong Telecom Mobile Mall () to seek help from online customer service, which is available 7X24 hours a day!