roaming:
Roaming helps ensure that a traveling wireless device (typically a cell phone) is kept connected to a network without breaking the connection.
Roaming helps ensure that a traveling wireless device (typically a cell phone) is kept connected to a network without breaking the connection.
站内导航:
特别声明:169IT网站部分信息来自互联网,如果侵犯您的权利,请及时告知,本站将立即删除！