mobile

I have been told that the M9 does not support advanced wifi calling. I'm not sure about my terminology, but what I mean is that it cannot hand a wifi call off to the LTE/HSPA network.

However I have just finished demonstrating that it does hand off without dropping the call, and to the HSPA network. I had noticed this behavior the other day, but in a discussion in an article on fiercewireless, i was told this is technically impossible.

My M9 is set to wifi calling, wifi preferred, and when I make the call in the driveway, the dialer says "wifi call", the call connects and the phone icon in the statusbar is green, and the phone beeps at me with a message that I'm near the edge of the wifi calling area and the call may drop. I drive away, the call never drops, the beeping/message stop, and the green phone icon in the statusbar becomes white. And I'm connected to "4G", not 4G LTE.