See: https://docs.google.com/presentation/d/1bBLbZ4tfjS_2Ds6d0TYpjO4_41meqVdPaZsKKFQUmC0/edit?ts=5c06f6c9#slide=id.g3d80ff410f_5_5

I would suggest we start this as an experiment with only the Phone Number field.