Problem:
I have an international remote user who wants to speak to a local user
without using a normal telephone so as to avoid paying for international
phone calls. The remote user is on WinXP and a dial-up line with a software
firewall (Norton). The local user is on WinNT4 with a DSL line and a
hardware firewall (Watchguard SOHO box).
I am not a numpty! I understand WinNT, WinXP, ports, firewalls etc etc, but
I'm not familiar with Messenger or Netmeeting. I have searched high and low
on Microsoft support and Knowledgebase and have been unable to find simple
information about what ports the different versions of Messenger and
Metmeeting use. All I can find is Microsoft's baby-talk tech support
information. No hard info. regarding port usage.
Can anyone tell me where Microsoft publish information regarding the port
usage for the various versions of MSN Messenger, Windows messenger and
Netmeeting? I don't need patronising rubblish about "click this button and
type in this number etc". I just want the port usage.
Also, I've seen a post here saying that some port usage changed from MSN
messenger 5 to 6. Does that mean some features are not backward compatible?
Thanks in advance,
Nigel