What number should I add before sending a text message to Russia?

International short message service refers to the service of sending and receiving short messages between the mobile customers of China Mobile Communication and the customers of operators in countries or regions outside Chinese mainland. Customers can use international SMS service without applying for opening. Customers can cancel the international SMS service function through 1860, business hall and website. The number setting of SMS center is the same as that of domestic SMS center. Mobile phones that can send text messages at present do not need to be reset. When a customer needs to send an international short message, he only needs to edit the content of the short message and input: international code (00)+ country code+user number at the sending number to send the international short message. The dialing mode of "+"+country code+user number is not supported at present. Customers send international short messages to operators in countries or regions outside Chinese mainland in Chinese mainland, and the tariff standard is 1.00 yuan/article. After roaming to countries and regions outside Chinese mainland, the international short message service tariff standard for global communication customers is: roaming short message sending tariff standard ×115%+1.00 yuan/article. In fact, you can consult 10086 for details, and you can get a detailed answer.