Siemens Automation and Drives (A&D) is presenting its HC25 wireless module, which can be used all over the world thanks to its triband UMTS and quadband GSM functionality. It is based on the 3.6 Mbps HSDPA (High Speed Downlink Packet Access) data transmission technology. The module complies with all the certification requirements of the GSM and UMTS standards such as R&TTE, GCF, CE, FCC, PTCRB, UL and IC. Moreover, it has been tested and certified in accordance with the requirements of local network operators. For the development of applications, the HC25 has RIL/NDIS/USB drivers.

With the drivers provided, applications based on Microsoft Windows XP and Mobile can be created. For example, the NDIS/USB driver enables plug&play functionality with Windows XP, and the RIL/NDIS/USB driver allows simple integration of the module in devices based on Windows Mobile 5.0. Communication between the module and the operating system takes place via the USB 2.0 full-speed interface.

HC25 features all the necessary functions for voice and data transmission, such as adaptation of the voice functions according to whether handset or headset and hands-free mode is selected. Audio settings can also be parameterized. In addition, data can be transmitted at the same time as telephoning.