Voice Chat internal error

After installing 8.5 FP1 I have the following message appearing every time Notes starts or I change location:

"Voice Chat Internal Logged In Job’ has encountered a problem.

An internal error occurred during: “Voice Chat Internal Logged In Job”.

Details:

An internal error occurred during: “Voice Chat Internal Logged In Job”.

com/ibm/collaboration/realtime/multimedia/phonegrid/internal/client/Client.reinitServerPort()V

I click OK and it goes on, but: how can I correct this?

Subject: same issue

The only way I have found to avoid the error is to uninstall the Voice Chat feature -

Subject: Voice chat internal error message

I am using:IBM Lotus Notes 8.5

Release 8.5 HHF167

Revision 20081211.1925-HHF167 (Release 8.5 HF58)

Standard Configuration

and see this error coming up very frequently. I have also noticed that I can not use the phone call facility from the integrated sametime (when I try to use it, neither myself nor my correspondant hear anything). Contrarywise, when I use the phone call facility from the standalone sametime, the call goes well.

Are these problems related?

Is there a way to correct this problem

Thanks in advance.

Oscar Olague