What are the advantages of Jilin Unicom's hang-up SMS service?

The advantages of Jilin Unicom's on-hook SMS service are as follows: 1) Accurate information release: On-hook SMS service sends advertisements to users who actively consult corporate customer information to ensure the accurate delivery of corporate advertisements. \ 2) Fast information transmission: enterprise customers can put in information immediately during the call or after hanging up, and the time is short. (3) Reduce the publicity cost of merchants: Compared with traditional media advertisements, the cost of on-hook SMS service is lower. \ 4) More flexible publicity: corporate customers can change the content of push messages at any time according to their own products, making their publicity more flexible.