noise instead voice

Hi,
I'm tryng to setup phoco in my car and I've notice that sometimes when I set up a call, the music stop, but instead to listen the call conversation i listen an annoying noise. does anyone have the same problem?

I'm using phoco with nokia 6630.

bye,
pijo

Yes, I also often have only static noise. PhoneControl.NET 1.6 with Widcomm 5.0.1.1200 on Ericsson K700i.

I think this is solely Widcomm driver related and wish if there is a cure.

hello,
do you think that another Widcomm version (previously or newer) could fix the problem?
bye,
pijo