After you hang up the phone, you will receive a text message. What kind of business is this?

On-hook SMS is a new form of direct media service for customers. When the system judges that the called party is in a call state, if it meets the settings of the called party (for example, connected, busy and no answer), it will selectively send a short message customized by the called party to the calling customer (only the calling number is mobile phone or PHS). 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 called users to promote enterprise products, but also facilitate calling users to save business consulting information, and is suitable for wing payment mobile phone customers and post-paid fixed telephone customers. For more service benefits, click on "official website" customer service 220 below to answer your questions.