Why the iPhone 5 Lacks Support for Simultaneous Voice and LTE or EVDO (SVLTE, SVDO)

So we've seen the new iPhone, and had a chance to briefly play with it at the demo room, but as I've learned in the past so many times you only really know a handset after you've taken a look at the FCC test reports or spent a few days with it yourself. On my flights home, I typed up our iPod and EarBud impressions piece, but also pored over those FCC test reports for the iPhone 5, and it became immediately obvious the iPhone 5 doesn't support simultaneous voice and data on CDMA2000 carriers such as Sprint and Verizon in the US.

The reasons, as always, are somewhat technical but at a high level pretty simple. Suffice it to say that at a high level this is a design decision which makes the phone as small and light as it is (it really is light, almost alarmingly so) and enables it to support a wide number of LTE bands, rather than some major oversight like I've seen it portrayed.

http://www.anandtech.com/show/6295/why-the-iphone-5-lacks-simultaneous-voice-and-lte-or-evdo-svlte-svdo-support-