Hi Frank,
You can add a Telnet server via the following configuration page.
The callback function I specified was "myTelnet". You can look at the cdoc for the NDK. Look at the ti.ndk.config.Telnet for more details.
There is a functional console callback implementation in the NDK. It is in packages\ti\ndk\tools\console\console.c. Simply set the callback to be '&ConsoleOpen' and define verStr and a supply a string:
char *VerStr = "\nTCP/IP Stack Example Client\n";
in your application.
Todd