If Unicom is not excluded, Unicom's "Wanzhong Card (Telemarketing Card)" is the cheapest in terms of telephone charges alone. 85 yuan includes 250 yuan phone bill (delivered in 20 months). Answering in the province is free, and local calls 1 1 minute are free. For local calls, dial 179 1 1, 15 1 min. It takes 39 1 minute to broadcast the roaming or roaming phone number in different places, and 29 1 minute to answer roaming outside the province. This is the most cost-effective mobile phone card in Zhaoqing. This is the card I use now.