China Telecom is the only operator with a satellite mobile phone license to operate the “Tiantong No. 1” ground operation exclusively. Gosuncn Technology Group, as a satellite phone terminal provider, cooperates with China Telecom to create this series of all-network + satellite phones, which features such as miniaturization, being easy to carry, low working frequency signal transmission loss. They can realize the sky-earth integration and seamless connection. In the meantime, they can support the communication in the field network environment and the urban public network environment. They have the first auxiliary satellite search function. They can make satellite calls by one key. Their various wireless communication functions can guarantee reliable communication under field conditions, which means, people can make calls and surf the Internet no matter in any routes such as offshore oil exploration, forest protection. They thoroughly break the monopoly status of foreign satellite communication system. In addition, the unique function of SOS one key call for help can call for rescue in an emergency situation to save lives.