I have already made outdoor and walking phone calls, worked perfectly for both parties.

You can set which microphone you want to use from the two Airpods. The people I spoke to on the phone didn't say anything about poor hearing quality.

Only the other person understands you a bit less than without Airpods. I make phone calls regularly with the Airpods.

Making calls works great! Answering and ending calls all works with the Air Pods.

This should work without any problems, but I recommend that you only do this in stereo.

I've had the Airpods for 3 weeks and I'm super satisfied :) Making calls is quite easy and the person I'm talking to has never complained.