Changing telnet command line interface to receive single characters

I am using NETOS7.1 and is writing an application with a telnet server. I want to communicate with a VT100 terminal. I have used the option TX_BINARY in order to receive control codes, but wants to receive single characters one by one and not strings ending with CR.
The standard firmware in the integration kit modules can do that but not the API’s in the jump start kit as far I can see.
Does anyone have a solution to this problem?