Global SIM Kit - Is Data Connection (Mobile Data - i.e. HSPA+ OR Wifi) REQUIRED to make Audio Call?
We just received our Global SIM Kit. We can only make audio calls when the Wifi is connected or if we enable cellular data connection. Is this normal? Is the data connection (Mobile Data - i.e. HSPA+ or Wifi) REQUIRED to make any audio call? If on mobile or cellular data and making an audio call, would we be using up our data plan? Is FreedomPop Premium Plus service required for audio call and text?