Audiovox CDM-8940

you can't normally. there is a bypass for this though. turn the speakerphone on, plug in your handsfree earbuds and make a call. then after you are connected unplug the handsfree earbuds and it will work, there is no distorton (atleast when i did it)🙂 after the call is done double check to make sure your call has ended though by opening and closing the phone afterwards.

Can you make it loud enough to hear, open or closed? Or is the one I'm using just have issues?