My phone behaviour is the same as yours (<30 min call time/month; lots of data usage). I see your point. My opinion is slightly different: turn off data connect

My phone behaviour is the same as yours (<30 min call time/month; lots of data usage). I see your point. My opinion is slightly different: turn off data connection and I'll leave my phone home; turn off voice and I'll happily tote the phone around and use it all day. So for me, voice is the accessory. What you describe is how to reach other people (as necessitated by them), not your own behaviour.