Also ironic as 4G (ala LTE) standard has VOIP routing for calls you make unlike 3G which uses a separate voice channel. So if you can not make a call upon LTE

Also ironic as 4G (ala LTE) standard has VOIP routing for calls you make unlike 3G which uses a separate voice channel. So if you can not make a call upon LTE normally out of your call minutes then you won't be able to make a call over VoLTE as they call it as it will just route from your device to the telco provder in the same way as currently and maybe less QoS tagging, so be supprised if there was any situation were making a pure VOIP call will be better than using normal call minutes. Now as many say all packages tend to have more than enough voice and SMS included quota and tend not to have unlimited data. Now for WIFI based calls with no or poor signal then this would be useful, also for long distance calls, which will probably not be included in that huge minute call bundle. So given all that for most it will be a novel feature they will not use, but for those making calls that do not fall within their calling plan, then this may be useful. Of note I was aware of VOIP over wifi being a feature in some phones (Blackberry and Nokia) over 10 years ago; But alas the carriers back then blocked such features from coming to the market. Nowadays carriers have changed and that may be in part how Apple initially pushed there devices onto the market allowing more clout and the fact such features will be more standard is only a good thing. Albeit for most they will be a feature they will not use.