OptionalavatarOptionaldevice_OptionalemailOptionallastnameOptionalringtonePer-contact ringtone override (MICA-142). Null means "use the system ringtone" —
that is the default, and a null is never backfilled to 'classic': a contact with
no override must keep following the player's system-wide choice even after the
system default changes.
Optionalstatus
The phone this row is on (MICA-282). Set by the server; absent on a row written before phones were items.