The computer uses motherboard with SiS chipsets. Because SiS chipsets do not have standard support for USB devices, the ITU1 1XX phones cannot support the motherboards with SiS chipsets very well. Loud noise may be heard. Equipment which have SiS chipsets are GigaByte GA85G667 Motherboard, Acer 351 Notebook, Toshiba 200 Notebook and Sony SR-27K Notebook, etc. Check www.sis.com for further information.

However, we have provided the latest version Client Software which might solve this problem, if the loud noise still exists even after you already installed it, please go to our website to download ?SIS Patch?. After installation of the SIS patch and plugging the USB phone into the computer, a green arrow will appear in the right-bottom of Windows. The green arrow indicates the installation of SIS Patch is successful.

Notice: The SIS patch does not work with WIN98 and some SiS chipsets.
If strong noise still can be heard after installing SiS patch, we are sorry for there is no solution for the time being. Please record the SiS chipset model number, motherboard model number and operating system (including language) and report it to us. We will solve this in future development. Some models of the following product brands may have SiS chipset,