Interesting Video and Audio Issue

Hello Folks,
this is not a newbie Question and I hope that someone has an idea. The following issues occurs when trying to establish Audio/Video Conferences via iChat:
* Video is transmitted just fine.
* User A can hear user B, but not vice versa
* Whereas Audio chat works just fine if user A hosts the conference
* Filetransfers do not work at all
* Screensharing works just fine!
The following infrastructure is used:
- Jabber Server (ejabberd)
- Both Clients use the same iChat version via the Jabber Server
- Both Clients run the same OS X Version (10.5.3)
ALL FIREWALLS HAVE BEEN TURNED OFF! (Mac OS Firewalls, Software Firewalls, ipfw and all firewalls between the hosts, we even put both hosts to the DMZ of our routers - so portforwarding is no issue because all ports are mapped to the client(s))
Can anyone help?
PS: Yes the microphone is running well and all plugs are plugged in

Hi,
AS far as I am aware ejabberd is a Jabber Client.
Using that you set up a Jabber ID with someone.
Who is that Someone (Server) ?
And what ports are they using in 1) ejabberd and 2) the Server you are with ?
iChat lists 3 Jabber ports
5220, 5222 for most Jabber ID's and Servers.
Some including GoogleTalk use port 5223
These are all TCP protocol Ports.
Have you got these open in any routing device you are using ?
8:49 PM Wednesday; June 18, 2008

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