What is the brand of mobile phone that sends messages between two people for free?

M-Zone is a special package of SMS. Every month 100 to 800 text messages. Tariffs are not equal. [Local tariffs and monthly subscription content are different, so it is recommended to ask 10086] As long as you choose the package, you can send text messages for free within the package, as long as it does not exceed. Beyond the last 0. 1 yuan/article, Unicom, Telecom and Mobile are indistinguishable. Unified 0. 1 yuan/article. Also, if you are a mobile user, you can apply for Fetion. After fetion is downloaded to the computer, you can send short messages for free at the client, but you should add friends later. Also, it is better for the other party to be a mobile user, otherwise it is a bit difficult for the other party to register Fetion. There are restrictions. The text message can't be sent to the other party's mobile phone.