RTPMRx to speaker instead of headset

Version 1
    This document was generated from CDN thread

    Created by: Roland Russwurm on 18-05-2011 08:06:58 AM
    I want to stream media to multiple phones using RTPMRx and it works great but if a phone has the headset enabled it is not sent to the speaker.
    I thought about sending Key:Speaker but this starts an outgoing call. 

    Is there a way to handle this?
    Many Thanks,