Plus  plus  plus the  Yeah. So  so actually , um That 's in part because the nodding , if you have visual contact ,  the nodding has the same function , but on the phone , in Switchboard  you  you  that wouldn't work. So  so you need to use the backchannel.
Yeah , you don't have it. Your mike is
So , in the two - person conversations ,  when there 's backchannel , is there a great deal of  overlap  in the speech ?
That is an earphone , so if you just put it  so it 's on your ear.