Living in Texas i spend a lot of time at the local shoot ranges, here it is required that you have eyes and hearing protection which makes it pretty hard to answer the phone. They make Blue tooth Hearing Protection but they cost 300+ dollars so i created my own using old hearing protection and a cheap Bluetooth headset.

The rest is explained on my Instructables page on how to create one for yourself:
http://www.instructables.com/id/Bluetooth_Hearing_Protection/
Feel free to vote on it while you are there.