Unicom's 4G National 76 yuan Package Free domestic voice for 200 minutes. Is it expensive to make a mobile phone call? Does it have to be used under the condition of 4G?

4G national 76 yuan package fee: the package fee is 76 yuan/month, and the national phone call is free, and the caller ID function is presented. The package includes 200 minutes of domestic voice calls and 400MB of mobile Internet traffic. After the package is exceeded, call 0. 15 yuan/minute, send 0. 1 yuan/message, and 0. 1 yuan/message. Domestic traffic is charged according to 0.3 yuan /MB, and 60 yuan /GB is charged if it exceeds 200MB, and so on. The minutes of voice dialing given in the package can be used to make domestic calls within the scope of Chinese mainland and within the scope of 2G/3G/4G networks, regardless of China Unicom Mobile Telecom.