Besides which the audio jack is an output jack, not an input one.
It IS the phone, not the iCom. I loved my LG VX8600 … except it sometimes was a bit flaky on voice commands via the Blue-tooth. I changed to a Motorola Barrage, and the phone works perfectly with the iCom via Blue-tooth. I’m told that I sound like I’m on a normal phone, not in a tin box, and I can hear as clear as a bell in both of my ears. And the voice commands are virtually error free. I am not a Motorola fan by any means … but their Blue-tooth support/performance is about the best there is.
When I first started using cell phones, a ways into their lifetime even, I had a Motorola StarTAC, I think it was called … and that sucker couldn’t hold a call for anything. I tried LG and fell in love with their performance … but in later years, they dropped the ball on Blue-tooth. I do not like other Motorla products either … such as their cable DVR’s which have 1/2 of the features disabled. But their later year cell phones can’t be beat for Blue-tooth … and they even hold a call real good now.