The short message services can effectively supplement the ground mobile communication network and satisfy the demand for emergency communication and search and rescue work in areas without ground network coverage.

短报文业务可以有效补充地面移动通信网络，满足地面网络未覆盖地区的应急通信和搜救工作需求。

It will provide voice and short message services as well as data for users in and around China, as well as in the Middle East, Africa, and most sea areas in the Pacific and Indian oceans.

该系统将为中国及周边地区、中东、非洲以及太平洋和印度洋大部分海域的用户提供语音、短信息服务和数据服务。