Voice over IP

[Axel Husung <axel.husung () uni de>]

Hi participants,

I have a big problem. My Provider set a Firewall up one week ago. I ran
different Internet Telephone Software like Vocaltec IP 5, Voxphone and
Netmeeting. After setting up a firewall, I don´t get any connection to ICQ
and the other programmes. Is there any possiblity to use Voice-over-IP via
a Firewall ? Or isn´t is possible to run those programmes?
The University runs a UNIX system.

Help is needed urgently.

TIA,
AXel