How to cancel SMS receipt service? I don't need it anymore.

Telecom users can send "KTDXHZ" to 1000 1 to order short message receipt service, understand or call telecom customer service to handle it, and send QXDXHZ to 1000 1 to cancel the 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.