FlyerTalk Forums

FlyerTalk Forums (https://www.flyertalk.com/forum/index.php)
-   Travel Technology (https://www.flyertalk.com/forum/travel-technology-169/)
-   -   eSIM thread (https://www.flyertalk.com/forum/travel-technology/1954827-esim-thread.html)

ckendall Oct 10, 2019 7:55 pm

TMo refused to do this over the app and told me to go to a store (I had previously tried but there were too many people ahead of me). Hitting the store in the morning I was able to get this done in around 15 minutes, with a moderately clueless rep who basically read my esim code over the phone. Off to Europe in a bit and will try to see how it works with my Vodafone sim.

javabytes Oct 10, 2019 8:25 pm


Originally Posted by ESpen36 (Post 31604095)
Is it worth it to try to switch the AT&T plan over to the eSIM, given that AT&T sells locked iPhones that cannot be used on other networks until you pay off the phone and go through the unlock process?

If your phone is locked, then I wouldn’t bother. You won’t be able to insert a physical SIM from another carrier and have it work.

My phone is unlocked. It took the AT&T store 10 minutes to move my service to an eSIM. And half of that was waiting for the safe to open so they could get an eSIM kit out. When they first tried to scan the activation barcode, it gave an error about not being able to successfully activate the cellular plan, but after a quick reboot it activated just fine. Rocking AT&T eSIM and a Google Fi physical SIM for use while traveling overseas.

ESpen36 Oct 11, 2019 8:18 am


Originally Posted by Magna (Post 31607689)
I finally got an AT&T rep willing to sort things out and knew what to do, which is basically checking if long strings of numbers match up. Some reps are willing to help, but are not trained to troubleshoot. But too many reps in "Advance Tech Support" know what has to be done, but aren't willing to go through the hassle. Literally, 3 Advance Tech Support reps were supposed to get back to me and none of them did. One said he would call me back in 5 minutes that he just had to move to another computer! We confirmed the phone number he was going to call me back on, even though I know he knows the number I'm calling from, but he never called back. I finally said I'm willing to wait and finally got a rep to set it up. The wait was an hour and it took another hour to finally get set up. Previously, during other attempts it was at least an hour, so I probably put in a total of 10 hours. Either they're unstaffed or many people having issues. It should only take 15 minutes, but the rep screwed it up the first time and it took me 10 hours to get it fixed.

Not sure why they insist we pick up an eSIM card with a QR code. On the iPhone you can manually enter in numbers to activate, but AT&T insist we scan a QR code. And in an AT&T store SIMs costs $5! But in an Apple Store it's free. But many Apple reps don't know they have them?!? And one Apple rep insist they didn't carry them. In the end, it's worth the hours to set up the eSIM and not have to have 2 phones for 2 numbers. . . I think.

Thanks! One other quick question: does using an eSIM for my main AT&T number (with international roaming) mean that my phone will be LESS usable abroad, since not all countries' GSM networks support eSIM technology? Or does it not work that way?

ESpen36 Oct 11, 2019 8:19 am


Originally Posted by javabytes (Post 31615080)
If your phone is locked, then I wouldn’t bother. You won’t be able to insert a physical SIM from another carrier and have it work.

My phone is unlocked. It took the AT&T store 10 minutes to move my service to an eSIM. And half of that was waiting for the safe to open so they could get an eSIM kit out. When they first tried to scan the activation barcode, it gave an error about not being able to successfully activate the cellular plan, but after a quick reboot it activated just fine. Rocking AT&T eSIM and a Google Fi physical SIM for use while traveling overseas.


Thanks!!

ajGoes Oct 11, 2019 8:33 am


Originally Posted by ESpen36 (Post 31616660)
Thanks! One other quick question: does using an eSIM for my main AT&T number (with international roaming) mean that my phone will be LESS usable abroad, since not all countries' GSM networks support eSIM technology? Or does it not work that way?

From the network's perspective, an eSim is exactly the same as a SIM card.

boardsports Dec 17, 2019 3:05 am

Anyone know the total number of eSIMs an iPhone will hold? I found one source that said up to 10, but also saw other sources saying less than this. Anyone reached 6+ eSIM profiles yet?

lsquare Dec 17, 2019 3:26 am


Originally Posted by boardsports (Post 31848295)
Anyone know the total number of eSIMs an iPhone will hold? I found one source that said up to 10, but also saw other sources saying less than this. Anyone reached 6+ eSIM profiles yet?

As far as I know, the iPhone only have one e-SIM and one physical SIM slots.

GUWonder Dec 17, 2019 4:52 am


Originally Posted by lsquare (Post 31848321)
As far as I know, the iPhone only have one e-SIM and one physical SIM slots.

The eSIM-capable iPhones can hold one phyiscal SIM and multiple eSIMs. But amongst the multiple eSIMs stored on the phone, only one eSIM can be used at a time.

draver Dec 17, 2019 6:30 am

Don't quote me, but I recall a statement from one of the prepaid esim FAQ's that up to 50 esims can be stored on capable phones. I have no idea if this is true or varies by phone make & model, but it was in print on a prepaid website. I have no idea which one, and it could be just BS, but it shouldn't require much data space, so I can see it being possible.

But wait, there's more!

I just did a little research on the subject and found a GSMA eSim Whitepaper with this quote:

How much memory will be available in an eUICC and how many Profiles can be stored into it?

The memory of an eUICC can range from several KB to several MB. There is no specific limit on the number of Profiles that can be stored on an eUICC, this depends only on memory available and the size of Profiles. Operators could manage Profile sizes to fit them in the eUICC.

Reference: https://www.gsma.com/esim/wp-content...aper-v4.11.pdf

pmeye Dec 17, 2019 6:35 am

I don't know the maximum number, but as I use 3 eSIMs an 1 physical SIM on my XSmax, I can tell, 3 works fine. Of course only physical SIM + 1 eSIM at a time.

boardsports Dec 17, 2019 8:26 am


Originally Posted by draver (Post 31848682)
How much memory will be available in an eUICC and how many Profiles can be stored into it?

The memory of an eUICC can range from several KB to several MB. There is no specific limit on the number of Profiles that can be stored on an eUICC, this depends only on memory available and the size of Profiles. Operators could manage Profile sizes to fit them in the eUICC.

Reference: https://www.gsma.com/esim/wp-content...aper-v4.11.pdf

This would explain why there is little consensus on this topic. I have seen three different numbers stated on three different carrier websites, the highest being 10 and lowest 5. Either way seems like you had better put good labels on your eSIMs to keep track.

draver Dec 17, 2019 8:31 am


Originally Posted by boardsports (Post 31849028)
This would explain why there is little consensus on this topic. I have seen three different numbers stated on three different carrier websites, the highest being 10 and lowest 5. Either way seems like you had better put good labels on your eSIMs to keep track.

Good point on the labeling. I generally call them by either the country or date I intend to use them during. Lots of flexibility here fortunately since iPhones gives you a custom name option, and the name is easily edited.

bukzin Dec 29, 2019 12:37 pm


Originally Posted by gfunkdave (Post 30774182)
It worked fine. I'll use them again when I go to France this summer. Much cheaper than Verizon's $10/day roaming.

Yeah, I think Americans pay some of the highest phone rates in the modern world.

Ask a Frenchmen how much data they get each month and what it costs.

bukzin Dec 29, 2019 12:41 pm

Yeah, same for the newer Android phones. Not sure how many esims can be downloaded in my Pixel 3a.

Gotta say, I’m loving the ATT data rates I got for US usage from Airalo.

theshaun Dec 29, 2019 6:39 pm


Originally Posted by bukzin (Post 31886661)
Yeah, I think Americans pay some of the highest phone rates in the modern world.

Ask a Frenchmen how much data they get each month and what it costs.

Ask Canadians what we pay!!! I'd give several body parts to pay American prices.


All times are GMT -6. The time now is 10:04 pm.


This site is owned, operated, and maintained by MH Sub I, LLC dba Internet Brands. Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Designated trademarks are the property of their respective owners.