About Windows Messenger's Audio port controlled through Group Policy

Server:LCS2005Enterprise+sp1
client: Windows Messenger5.1.0680

i installed lcs2005 at intranet,use TCP login, At intranet ,all user use
audio chat ok.
i publish lcs2005 to internet by ISA server 2004(publish TCP 5060 port).
now I can login from internet to Intranet successfullly.
Now we can chat by text.
I want use audio chat,I find microsoft artical
http://support.microsoft.com/default.aspx/kb/903056
so I open UDP 7100~7103 5350~5353 at ISA firewall , and then use Group
Policy registry setup client 's port range to UDP 7100~7103 5350~5353. then
i test IM from internet ,audio connnect session ok.but we cannot hear any
sound.
So I change ISA server access rule,open UDP 1024~65535, test again,Now audio
ok.


Group Policy registry has successfull setting MinMediaPort and MaxMediaPort
in my registry.

why i only open UDP 7100~7130 5350~5353 not useful? what does Group Policy
registry setting function?


thanks a lot.



.

Relevant Pages

  • Re: Separate partition (not C) on DAW for office data? Not ideal I know
    ... Check what the audio application asks for, ... ie. that you have audio data space on both ... "firewall" the DAW, ... and that using internet from it will some day result in you falling into ...
    (rec.audio.pro)
  • Re: Problems with version 9 and Win2K
    ... but I cannot play SOME audio content on the Internet. ... new media player window would open whenever I clicked on an audio link. ... the speed control is not available in Win2K. ...
    (microsoft.public.windowsmedia.player)
  • Re: Computer Sound
    ... All surround speaker sets that cost £100 or less are essentially crap. ... DSL Internet connection, but nothing to do with audio other than that ...
    (rec.audio.pro)
  • Re: XP1000 and DEGPA-TA
    ... Vance Haemmerle wrote: ... called "Compaq Creative Labs AudioPCI Card (also referred to ... Internet and there seems to be several Compaq AudioPCI cards, ... audio on the Personal Workstations if some info is added to ...
    (comp.os.vms)
  • XP1000 and DEGPA-TA
    ... After getting a DEGPA-TA (Gigabit Ethernet) for an XP1000 ... called "Compaq Creative Labs AudioPCI Card (also referred to ... Internet and there seems to be several Compaq AudioPCI cards, ... audio on the Personal Workstations if some info is added to ...
    (comp.os.vms)