The reviews say that the sound of the X5 is superior to the sound via the S4i.

My traveling device is an iphone G3.

The X5 is without a mic.

When listening on the iphone via an X5 and a call is received:

1. Disconnect the X5 and speak into phone, is that it?

2. when driving - replace the X5 with a mic device?

I'm I missing something- are there other scenarios?

Thanks,

bedi

I think you hit the high points.  Unplug your X5 and you iPhone will work as usual.

I listen to music through the X5 and my iPhone 3G while driving to block road noise and have better quality audio.

When the phone rings, the audio automatically mutes and changes to the phone mode.  I answer and listen to the caller through the X5 and speak into the mic on the bottom of the phone.  No need to unplug the X5s.  Same is true when placing a call.  Talk into phone mic, listen through X5s.