Port 6901 has nothing to do with voice/video conversations, this port was used by MSN
Messenger 3.x only, a version of Messenger that won't even connect to the Messenger service
today. As of Windows Messenger 4.x and MSN Messenger 4.x+ (6.x ' *** ' support is slightly
different), the ports used are 5004 through 65535 (UDP).
Yes it would matter -- you cannot simply forward the ports and have it work (unless the
router has some type of built-in Messenger support, which is unlikely), in fact, forwarding
the ports in many cases will stop UPnP support from working. Since UPnP will automatically
open and forward the ports, there is no need for any configuration with proper UPnP support.
However, as far as I can tell, the Speedstream 5660 does not support UPnP, and as such, you
will not be able to have a voice/video conversation without third-party support such as
RealTunnel ( http://www.yqcomputer.com/
) or ENat for Messenger
Microsoft MVP - MSN Messenger/Windows Messenger
Messenger Resources - http://www.yqcomputer.com/