Set speaker mode during record                         
  
    | Func AX | 
    1Dh | 
   
  
    | Param DX | 
     1 or 0
     | 
   
  
    | Return AX | 
    None | 
   
  
    | Delay | 
    None | 
   
     Set the speaker mode during record.  The speaker can either be set so
    that the record channel or playback channel is heard. If the parameter
    to RECORD_LINE is set to 1 the speaker is set to the record channel so
    that a recording from the line can be heard through the speaker. If the
    parameter is set to 0, the speaker is set to the playback channel and
    recording cannot be heard through the speaker. This setting only affects
    the speaker operation during recording. When recording from the local
    phone the speaker is automatically toggled off to prevent feedback. |