"Broadcast Telephony Audio" and audio bridges

Hi all,

I have a question regarding audio bridges and seperate teleconferences. The way in which we usually run our meetings is by the audio profile function in meeting information. We start the meeting, connect audio (ACP dials into the teleconference and establishes the audio bridge)  then the participants join the teleconference as participants from land line phones. We prefer to keep this set up as it requires very little set up from the participants point of view - all they need to do is dial a teleconference number using their phone. We then record the meeting and the audio is captured via the bridge.

My question is.. if I were to disable the "Broadcast Telephony Audio" option in Audio conference settings, would the meeting recording still pick up the teleconference audio or would this be lost? The reason why I want to do this is we sometimes get issues with feedback. ie, the teleconference audio is coming through someones laptop speakers and causing an echo effect. Ideally we would have all participants speakers set to mute by default in ACP but I dont think you can do this as a meeting presenter?

Any other thoughts/soloutions would be greatly appreciated!