[Freeswitch-users] In dialogue SIP Message

Hi, I'm looking for a way to send SIP MESSAGE but within the current call dialogue (call-id). I know that via the chat API I can send messages but as they are without the context of the current call this doesn't work for me. So like the SNOM phones being able to send record: on within a established call i'd like to send SIP Messages from freeswitch within the current call to the remote destination. Can this be done and could anyone provide me with ESL/API command to perform this action ? Thanks in advance. Regards, Tjardick