Send a message to a telnet client without having receive a command first

The callback function netTELNETs_ProcessCommand processes and executes the command requested by the Telnet client. 

In my application, I have to send a list of message to answer to only one command request.

I've seen in  the documentation that the function netTELNETs_RequestMessage is used to pass unsolicited messages to the Telnet server. 

Is it possible to use this function to send several messages, and how can I use it ?

Thanks !

Thierry