What's the use of hanging text messages on fixed lines?

Fixed-line on-hook SMS is a wireless accurate media service specially designed for merchants. When dialing the hotline of the forwarding customer to the merchant (enterprise), the forwarding user will post short messages with different contents to the caller number according to the status (hung up, busy, no answer), and the forwarding user will receive one or more short messages (SMS/MMS) sent by the merchant (enterprise). Guizhou users pay attention to China Telecom's customer service in Guizhou. The official account of WeChat can be paid by WeChat, and the phone bill can be recharged with one click. Traffic, points, bills and detailed bills can be operated by themselves, which is convenient and fast. Customer service 40 will answer your questions.