Short message hertz purchase

Henan Unicom has a short message receipt service, that is, after the user sends a short message, the system sends a receipt to the user, prompting the sending status of the short message. When the short message sent by the user is not successfully sent to the receiver, the sender will receive a receiving notification short message to inform the receiver that it failed to receive the short message. You can choose to set the receipt of successful SMS sending or the receipt of failed SMS sending; You can also select different user groups and set whether to accept receipts. 3 yuan information fee per month. You can send short message "KT/ZXZJHZ" to 10655555 to enable/cancel this service.