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 03-13-2018 05:03 PM
 Brobot
 
I've switched my main line over to my parents' VZ account. I was planning to sell my Intel modem equipped iPhone 8 Plus to get a Qualcomm model but first I figured I would give VZ a try on this phone for fun.

After throwing the SIM in my iPhone 8 Plus my phone registered with the network and started working as you might expect immediately. LTE voice and data worked fine and so did text messaging. On VZ's website it even showed up as iPhone 8 Plus CDMA-less.

I was concerned that without CDMA I wouldn't get roaming coverage where the rest of my family does on USCC. What I expected was to see "No Service" in these fringe roaming areas, what I found was where they would roam, my phone would stay barely connected to native LTE.

It was usable for voice too. My phone held a call with an extremely weak VZ LTE signal where Qualcomm iPhones would have long since dropped to Extended 1x USCC CDMA or "No Service". It was very impressive to me.

I also like that I can use the Intel Field Test service menu which is far more complete and less buggy than the Qualcomm disaster that Apple hasn't updated since the iPhone 5.

The only con I've found to using strictly LTE is it seems my to drain my battery more quickly. I'm not really sure why.

Another thing I've noticed just browsing around on VZ's website is they have a specific coverage map for devices without CDMA, ( https://www.verizonwireless.com/search/vzwSearch?Ntt=Coverage ), one thing I noticed about this map is that there is roaming coverage shown as available but the pattern looks different from CDMA roaming patterns.

This map, (if correct), leads me to believe there is special WCDMA or LTE roaming available just for LTE / WCDMA only devices like mine and those VZ sells (mostly flip phones).

Has anyone actually used this roaming? I'm very curious about this. The first time I saw the map I assumed it was in error but the differences between CDMA roaming patterns and this map lead me to believe it may be true.

Take a look at West Virginia and compare between the LTE only maps and the CDMA/LTE map. There is a lot more coverage shown (perhaps it's AT&T WCDMA roaming?)

This is exciting to me because one of my chief concerns for me with Verizon shutting down CDMA is roaming availability in areas VZ has less coverage. Select AT&T roaming as well as other regional WCDMA carriers would definitely fill these gaps and allow VZ to switch to an all LTE network cleanly.

Anyway for those wondering, the Intel iPhone 8 works surprisingly well on VZ's network. I think I'm just going to stick with it until the next set of iPhones are released.



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 03-13-2018 05:12 PM
 weskeene
 
Originally posted by Brobot:
I was concerned that without CDMA I wouldn't get roaming coverage where the rest of my family does on USCC. What I expected was to see "No Service" in these fringe roaming areas, what I found was where they would roam, my phone would stay barely connected to native LTE.

It was usable for voice too. My phone held a call with an extremely weak VZ LTE signal where Qualcomm iPhones would have long since dropped to Extended 1x USCC CDMA or "No Service". It was very impressive to me.


I'm not too surprised. Most people that whine about dropping to 1x or 3G aren't keeping in mind that the phone only drops to those, because it can, and they are there. If there were no fallback, it would just continue with the weak LTE that is available.

Originally posted by Brobot:
The only con I've found to using strictly LTE is it seems my to drain my battery more quickly. I'm not really sure why.


That isn't surprising, either. Since your phone can't go back to a relatively strong 1x signal, it's on weaker LTE signals more often in these fringe areas. Weaker signals always cost you more battery, because the phone is constantly searching for a stronger serving cell.
 
 03-13-2018 05:15 PM
 Brobot
 
Originally posted by weskeene:
That isn't surprising, either. Since your phone can't go back to a relatively strong 1x signal, it's on weaker LTE signals more often in these fringe areas. Weaker signals always cost you more battery, because the phone is constantly searching for a stronger serving cell.


I should have clarified here, it's draining more quickly in moderate to strong signal areas as well.

At my home where I see full signal on band 13 and moderate signal on Band 66/4 it uses far more battery than when it was on AT&T's network.


Sent from my iPhone using Tapatalk
 
 03-13-2018 05:22 PM
 weskeene
 
Originally posted by Brobot:
I should have clarified here, it’s draining more quickly in moderate to strong signal areas as well.

At my home where I see full signal on band 13 and moderate signal on Band 66/4 it uses far more battery than when it was on AT&T’s network.


Sent from my iPhone using Tapatalk


Now that is strange. I have no ideas on that.
 
 03-13-2018 05:27 PM
 Brobot
 
Originally posted by weskeene:
Now that is strange. I have no ideas on that.


All I can figure is the modem might be freaking out trying to find a WCDMA fallback that isn't there.


Sent from my iPhone using Tapatalk
 
 03-13-2018 05:41 PM
 weskeene
 
Originally posted by Brobot:
All I can figure is the modem might be freaking out trying to find a WCDMA fallback that isn’t there.


Sent from my iPhone using Tapatalk


Interesting theory. Sort of difficult to prove, though. Hopefully phones are smart enough not to waste much energy looking for backups when the main signal is fine.
 
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