When is Verizon going to come up with a 4g LTE CDMA GSM phone, just to leave no needs unfilled? Seems like an obvious gap, except that searching these boards and elsewhere seems to lead to the paradox of yes backwards compatible, but not actually global.
Argghhhh. Any helps or ideas?
If I am reading their descriptions right, none of those phones are 4G/LTE. I've read that LTE is backwards compatible with GSM, so those phones should be sold as international, right? That is the puzzle I'm trying to figure out. Will LTE phones in fact work on GSM networks (let's say in Europe)?
Europe (and most of the world) uses the GSM frequency bands of 900 & 1800 Mhz. Verizon's LTE operates using the 700 Mhz frequency band. That is why Verizon's LTE phones (at least the two that are currently for sale) are not listed as 'global' phones. In the future when (and if) Europe converts to the 700 Mhz band these phones may be useable there, but not now.
The ONLY time they are backwards compatible is IF the frequencies are there. Verizon runs 700mhz spectrum and is NOT used anywhere as GSM or UMTS/AWS therefor it is NOT a global ready device. Verizon also uses CDMA for voice/text and there are limited places around the world that run CDMA. When Verizon goes VoLTE then there is a chance if Europe decides the run 700mhz spectrum(high chance since Vodaphone has been lobbying for it hard) then Verizon will NOT have a global LTE device as the radio doesn't support anything but 700mhz.
Some modern chipsets include software-defined radios that can change
their frequency and even their technology. They change mode depending
on the firmware loaded at startup. It would be really helpful if we had
a list of such chipsets and the phones that use them. At least we'd
know which ones stood some chance of being global-compatible in the
future, if and when Verizon decides to enable the capability. As it is,
they stand a very good chance of losing an increasing number of their
most lucrative customers.