Make tunnel from wifi to RS232 port.

Sierra’s utility that I am searching is being able to redirect data from a TCP request to the RS232 port.
I have no SIM card and I think than I do not need it. The ALEOS firmware version is 4.3.5.
Entering in ACEManager console and applying Reverse Telnet/SSH option as Startup Mode Default in serial tab
configuration I obtain the searched result. But two problems persist. The first trouble is than TCP request
needs a time delay about 200-300 miliseconds. The second problem is than response contains at beginning
the welcome telnet message. Can anyone tell me how I can resolve these issues?