What steps would be necessary to connect an iPhone 4S to a Windows 7 desktop computer, and then to accept a phone call from the microphone/headset on my computer? I'm essentially looking to pair my iPhone to my computer in the same manner in which it has been paired with my automobile.
I'm just throwing this idea out there, it is probably flawed in some way, haha.
If you bought the following or something like it, I think you could run a stereo mini cable from the pc to an adapter that splits it into 2 RCA cables (amazon has the cables in a package deal with the mixer). Plug that into the mixer. Do the same thing from the iphone's headphone jack.
Grab the headphone adapter and listen directly to the mixer. You now will have sepperate volume controls for the device right there in front of you! Is that kind of what you're wanting to accomplish?
Your best try would be Bluetooth, but you'll first need to test if you can at least pair them. I guess that, since you can do it, it'll be easy to use Bluetooth tools in your PC.
Some time ago, I've bought a Bluetooth dongle for my Win7 laptop (which doesn't have internal Bluetooth). Unfortunately, I was never able to pair it with my Android mobile (they always issued different pairing passwords); I've read somewhere that it was a Win7 problem with Bluetooth.
Besides, I've never had an Apple device, but I've heard that they prevent sharing via Bluetooth with devices other than Apple.
So if you can at least pair them, then there'll be a good chance you can do what you want.