Issue:
How to disable echo on ioland processes that are configured with -p and -o options.

Solution:

In order to keep the port open and disable echo (-echo),  add the following lines to the end of the scripts used for starting the ioland processes. Repeat for all ioland processes.

For example, to disable echo on tty1.  

(cat > /dev/null) > /dev/tty1 &
stty -echo < /dev/tty1