CEO of Gizmo5 here - we operate CallNokia.com. For those unfamiliar with it is a flash based calling service which requires nothing but a browser and of course flash 9+ installed to make and receive calls. It can be used to call Nokia tablets and Nokia wifi phones.

I read about your problem with the microphone. All the microphone detection is handled by flash, so Adobe controls that code not Gizmo5. To adjust the microphone settings, right click on the dialpad and select: Settings. Then select the microphone icon. Here you can adjust which mic input flash is using and the sensitivity of the mic. I hope this works for you!

We are seeing about 2500 daily unique users to CallNokia so lots of successful calling is being done on this new service.