Why do you sometimes get text messages when you call someone else's seat? What kind of business is this?

On-hook SMS is a brand-new live media provided by China Telecom for fixed telephone and cluster customers. When judging the call status of the called party, if the system meets the settings of the called party (such as connected, busy and no answer), it will selectively send the called party customized short messages to the calling customers belonging to mobile terminals (including Tianyi, PHS and other mobile phones). The content of short message can include telephone number, company name, product brand, office address, publicity information, personality declaration and other information, which can not only help the called user to publicize the enterprise products, but also facilitate the calling user to save the consulting information of the business. Suitable for fixed telephone and trunk customers. All packages of this product can't be processed at the same time, and can't be processed at the same time with Kuanle Communication, Super Cordless and Number One. For more service benefits, click on "official website" customer service 324 below to answer your questions.