Can I join flanuer2's or cymh's cell plan? But tmobile has really bad reception, so att is better. Basically you need to change your individual plan to family plan

Tmobile does not have bad reception, it's just that iPhone cannot handle its 4G frequency for data. If you get tmobile smart phone it should be ok.

I'll ask Stacy or Flo to look into it.

謝謝姊姊