1. The charging standard for sending MMS by Unicom users is as follows: 1. Take Chongqing Unicom as an example: (billing by article) 1)2G users: send -0.5 yuan/article; 3G users: Send -0.9 yuan/piece; 4G depends on the selected package tariff. 2) Receiving: free of charge. 2. The mobile phone must meet the following three conditions to use the MMS service: 1, and the mobile phone has the MMS function. 2. Enable GPRS function. 3. Set the parameters of Unicom MMS correctly. 3. MMS-related settings (taking iphone as an example): 1, mobile phone settings-information tip: Due to the different charges in different cities, please contact the local Unicom manual customer service or go to the local Unicom business hall.