The D-Link DWM-156 User Manual introduces the characteristics of the D-Link DWM-156, including product appearance, package contents, system requirements, hardware overview, LED indicator information, installation, SIM card installation, microSD card installation, software installation, basic functions, software overview, new profile, using default profile (preset), user-defined profile, establishing a connection, ending a connection, profile management, connection management, current connection, connection history, usage management, usage, usage statistics, text messaging (SMS) and new/reply.