What is the role of Beijing Unicom's hang-up SMS in the opening of enterprises?

On-hook SMS service is a new value-added service, which can push the personalized signature selected by the called user to the calling mobile phone in the form of flash SMS during the call initiation. When the user is called, he can send his personalized signature information, such as personalized mood, information, opinions, business information and so on. Send it to the caller's mobile phone in the form of flash message, so as to show yourself, strengthen communication and promote the brand. This service can also provide users with interference-free service, and inform callers of the reasons why they can't answer the phone in the form of short messages when it is temporarily inconvenient to answer the phone. Through this business, group users can realize unified external image display, corporate information publicity, corporate products and business opportunities publicity and other functions.