Airpods drop bluetooth connection to Iphone 6s Plus
I have two iphones, a 6s plus and a 7. AIrpods are working perfectly on the 7 with no issues at all BUT.. on the 6s Plus they keep dropping connection when making phone calls. Work perfectly well listening to music. I've called Apple Help - to be honest.... useless. They told me to back up phone and then restore, this took ages and didnt fix the problem. Then called back and told they would run diagnostics - this unearthed nothing. Now told to take phone into a store (nowhere in a 100 mile radius has an appointment for nearly a week) and they would then send phone away for repair. Bear in mind they had already told me there was nothing wrong with the phone.. so what are they repairing. Question - DO airpods work with Iphone 6S plus (all features) in reality OR do they work just with Iphone 7..
Any thoughts welcome.
iPhone 6s Plus, iOS 10.2, Airpods