That's an indication a firewall is still in place. Incoming connections to Netmeeting need to be open as well. I offer zero firewall support, but will give generic advice on what needs to be done. For your part you will be an expert on your selected firewall.
Here's the needed port and protocols -> http://www.microsoft.com/windows/NetMeeting/Corp/reskit/Chapter4/default.asp
I cannot use Net Meeting. When I opened Net Meeting a window asked if I still wanted it blocked, I clicked Un-Block but I still cannot use Net Meeting: cannot make or receive calls, cannot connect to a meeting. Is there something else that I must do other than click Un-Block? Thanks.