Symantec Internet Security 2005 and Messenger 6.2

Archived from groups: microsoft.public.windowsxp.messenger (More info?)

I wonder if anybody can help, I have Symantec Internet Security 2005 and MSN
Messenger 6.2 loaded. Both products work well but not together. Messenger
is configured in Symantec to enable communication on any required port. If
I start a video conference session and open a WebCam session I am able to
see the other person, if I then try to establish a voice session (at the
same time) it fails and voice is not established. If I disable the Symantec
product both video and voice work.

The Symantec web site is next to useless and offers no help! Has anybody
got both video conferencing working with Symantec Internet Security 2005 and
Messenger 6.2?

Any help would be appreciated.

Thanks

Ian