If you want to cross the city to cornet, it is the cluster network in the province, 10 yuan/month. I want two business cards in the same place. Example: I bought Mobile M-Zone Card and Shenzhou Travel Card in Guangzhou. They should all be Guangzhou cards, and they should be mobile to mobile. I open 10 yuan/month. Provincial cluster network. If you want to save money, 10 yuan/month (even if both cards are not in Guangzhou) you can call each other anywhere in the province. If you want to save money, there is a local cluster network, 5 yuan/month. However, there are also shortcomings. If you buy two cards in Maoming, one in Maoming and the other in Foshan, you can only call the Maoming card in Foshan, otherwise there will be a charge for calling the Maoming card in Foshan.