Alter synchronization subscription

To change the subscription at the client site we use the script:

alter synchronization subscription mydownload type tcpip address 'host=myhost;port=2439;' "

This forces the client to use port 2439. Reading some documentation, it seems not necessary to set port 2439 at the client site.

We hope that when we remove the port the software will choose a port that is available.

If we run the script "alter synchronization subscription mydownload type tcpip address 'host=myhost;' " will that remove the port?

Thanks

Eric