/\ Yeah, players can use it for the same. Or for "speaking" through much noise (say, on each side of a battlefield). Staying in touch while sneaking. Sometimes, for delivering messages behind the backs of a team mate. Etc.

My question is actually just, "Can you, while connected via message, have a conversation with an NPC, while your message-casting friend can still hear what you're saying?"
Ignoring the range and blocking limitations (we'll cross that bridge, when we get to it).

I just want to know if it's at all possible. Sounds a bit like it, from your replies (I mean, no one has contradicted that part yet ). But, yeah? Is Ranos the only one who has actually used it like that?