Problems on port 2000

[gdeswardt]

I'm having some issues connecting to a server via telnet on port 2000, where as I can connect to the test server on port 2001.

I would like to know if there is a firewall rule that blocks non-standard access to port 2000?

The client softwate I'm using is not VOIP software.

Any ideas

Regards
Gdeswardt