GSM Question

[420benz]

Just read that Verizon does not support GSM.But my new phone does.What will i be using with Verizon?

 

[Rukbat]

The S10 supports both GSM and CDMA (if it's the SM-G973U, but not the F, DS or W - same with the S10+ - SM-G975), and that's what Verizon uses. Sort of. (They're changing, and may convert over to GSM in a few years.)

 

[fuzzylumpkin]

Well, with the caveat that I'm not one of you colonials, Verizon traditionally uses CDMA. However, with that caveat in place, I'm fairly sure Verizon are (finally) joining the rest of us here in the 21st century and killing CDMA off in favour of GSM!

Now if we can just get you guys to stop thinking a signature is appropriate security for a credit or debit card...

 

[kct1975]

The S10 supports both GSM and CDMA (if it's the SM-G973U, but not the F, DS or W - same with the S10+ - SM-G975), and that's what Verizon uses. Sort of. (They're changing, and may convert over to GSM in a few years.)

Well, with the caveat that I'm not sur one of you colonials, Verizon traditionally uses CDMA. However, with that caveat in place, I'm fairly sure Verizon are (finally) joining the rest of us here in the 21st century and killing CDMA off in favour of GSM!

Now if we can just get you guys to app thinking a signature is appropriate security for a credit or debit card...

My understanding is that Verizon is not going to go to GSM. They will be killing off CDMA fairly soon and going to 5G and LTE only, as soon as VoLTE becomes the Standard, which should be soon.

 

[astrodan13]

Yes, Verizon will eventually shut down CDMA once 5G is more wide spread. You'll still see 4G, but no CDMA . You definitely will not see Verizon do anything with GSM, those bands are on Verizon phones for roaming and mostly international use. Most phones that use HD calling are VoLTE, so as 5G gets more widely rolled out, the CDMA bands will be reused for possible 4G use. Not sure what other frequencies 4G can be used on usefully though.

 

[BaritoneGuy]

Yes, Verizon will eventually shut down CDMA once 5G is more wide spread. You'll still see 4G, but no CDMA . You definitely will not see Verizon do anything with GSM, those bands are on Verizon phones for roaming and mostly international use. Most phones that use HD calling are VoLTE, so as 5G gets more widely rolled out, the CDMA bands will be reused for possible 4G use. Not sure what other frequencies 4G can be used on usefully though.

Technically all the "Gs" can run on all the frequencies. They just behave differently. Using lower frequencies usually means slower speeds but better coverage. High frequencies mean the opposite. Like with MM wave 5G you need to be really, really close to the cell site.

 

[astrodan13]

Thanks for the input on that! I kind of had an inclination towards what you said, but really wasn't sure and didn't want to put erroneous information out there. It's been a really loooooong time since I've played around with wavelengths and such. So thanks for the reply! As I understand, the CDMA wavelengths will be used for 4G and possibly 5G. So better coverage, but slower speeds. I'm not really sure why they went mm wave. I do know it doesn't penetrate very well, but the speeds are great. You would think that they went for coverage first, then speeds second. Maybe more for the "look how fast our 5G is" . That's the only thing I can think of.

 

[BaritoneGuy]

Thanks for the input on that! I kind of had an inclination towards what you said, but really wasn't sure and didn't want to put erroneous information out there. It's been a really loooooong time since I've played around with wavelengths and such. So thanks for the reply! As I understand, the CDMA wavelengths will be used for 4G and possibly 5G. So better coverage, but slower speeds. I'm not really sure why they went mm wave. I do know it doesn't penetrate very well, but the speeds are great. You would think that they went for coverage first, then speeds second. Maybe more for the "look how fast our 5G is" . That's the only thing I can think of.

For the right applications MM Wave is a game changer. A crowded arena as one example, but one I like better is in the factory. We spend millions wiring up our plants for networking. Getting an ethernet drop near a PLC can be almost impossible. MM Wave in a controlled environment like that is huge.