Open Port 1027 problem or not?

Hi Folks,

I am posting my question here rather than support..because I am not sure if it is a problem. I have a client that uses ScanAlert, and they sent me the following email:

when port 1027 is used, you get a successful connection with prompt. There is not feedback from the server. However, according to scan alert, the server is waiting for a command input.

When you use a port different from 1027 such as 1028 the connection is rejected?.

Is port 1027 open for a specific purpose? Is it possible to close?

Thanks for any input to this!