The other ones on here didn't seem right, so I made a lazier alternative without having to re-tune every string. E|---------4---------| |-------------------| B|-------6---6---6---| |-------4---4---4---| G|-----6-------6---6-| |-----6---6---6---6-| D|---4---------------| |---4---------------| A|-------------------| |-------------------| E|-------------------|x3 |-------------------| Repeat ad nauseum!
https://primanota.net/jon-brion/phone-call-chords.htm