[reSIProcate] Exchanging INFO messages with DUM

[Alan Stokes <alan@xxxxxxxxxxxxxxxxx>]

If I'm understanding things right (which is a big if right now), once
I've got an InviteSession going I can send an INFO message by calling
InviteSession::info, and I can receive an INFO message by implementing
InviteSessionHandler::onInfo. And I can receive the response to an INFO
I send by implementing the onInfoSuccess and onInfoFailure functions.

However, how can I send a response message to an INFO? I can see
InviteSession::acceptInfo (and rejectInfo), but they only parameter
they accept is a status code. I'd like to be able to send a response to
an INFO with more information in the message (specifically I'd like to
attach a body to the message). Is there any way I can do that?

Thanks,

Alan