So will the Teracube 1 get certified with AT&T so that we can update the IMEI number with AT&T and get VoWiFi/VoLTE/HD Voice.
That’s the plan. Hopefully it happens soon for everyone 
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We will look into T1 certification after Teracube 2e gets certified. The process is stretched out and expensive - so we want to finish 1 phone first which was already underway.
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Any news about certification? I’d like to keep the same phone and not have to buy a new one
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We have been working with AT&T for T1 as well. Its a slow process - waiting to hear back from them on the latest communication.
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Following this topic. I also got this notification.
FWIW, my sim was moved from a certified device when I got my One and for several months I had the VoLTE icon and it appeared to be working that way during calls. Eventually AT&T must have figured out I’d moved the SIM to an uncertified phone though, and it stopped working with VoLTE. That was about 6 months ago. Not a super huge deal, but of course it’ll become one next year if they stick to this schedule.
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Any update on certifying T1 for AT&T? My cell provider sent an e-mail saying the are turning off my phone in a few weeks due to 3G. If the T2e is certified why not just switch out the T1 phones for a T2e phone.
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Yeah AT&T said they were mailing me a new phone now, I’m wondering what the progress report on the Teracube 1 certification is now
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I wish I could share some timelines on that. Its totally dependent on AT&T. However, we did make some progress last week.
@Tim_Hood @Gatlin_Newhouse - are you on Android 10 or Android 9? There is an issue with the APNs on Android 10 build because of which AT&T is giving 3G instead of LTE.
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Android 10 but LTE is working for me
I’m on Android 9. Do I need to update to Android 10?
Just got a notice that AT&T has shipped me a replacement for my Teracube One without me asking for it, an LG Expression Plus, which appears to be a much inferior phone on just about every spec. Yay?
Even if the One does stop working, I don’t see me using the model they’re sending me as the replacement.
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Would moving to T-Mobile or its MVNO’s buy you more time? I haven’t checked the supported device bands against Tmobile.
Edit: Teracube supports Bands 1,2,3,4,5,7,8,12,13,17, TMobile supports Bands 2,4,5,12,66,71. 
Should work!
And👇
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Hi All,
Great news - we have an initial notification from AT&T that Teracube One will be approved on their network (including Cricket) by mid-next week. At that time, all you will have to do is put your SIM in a different phone and then bring it back.
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…and now I’ll share another twist:
ATT sent us cheap phones because they think our current phones are not 4G capable (in fact they are, but not NOT VoLTE, or WiFi). For fun, I moved our working SIM from LG V20 to the cheap “Radiant Core” and was able to do VoLTE and wifi calling. Wife carried it for a week and hated it. Put the SIM back into her original LG V20 and went on about our business. Next day, her phone was “deactivated” or whatever. Message when placing calls that we must dial 611 or some 800 from a landline. I called the 800#, reported the issue. Rep said it was deactivated because it was an incompatible phone (despite having worked fine for 2 years with that sim). Rep “reactivated” it and all is well now.
I’m beginning my journey to migrate to VoLTE/WiFi-calling capable devices, and moving off AT&T. Looks like Terracube 2e, on Ting (over T-mobile) will be our solution. At home, I get up to 1 bar of AT&T 4G VoLTE, and 0 bars of any T-Mobile, so WiFi calling is critical.
Wifi calling works with TMobile for sure. We haven’t tried it with ting ourselves but should work if ting says they support it in general.
I kept getting all these messages Cricket about my Galaxy S7 Edge not working after the 3G shutdown. Now they have it on a list of phones that will continue to work. At least they gave me a free Galaxy A12 for my trouble.
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Hello! Not sure if it deserve a new topic;
Im in Canada, I just changed my carrier without doing my research, from Koodo to TELUS. In theory, its the same network. However, many elements semms to be similar with AT&T; the TELUS online tools to check VoLTE capabilities say that its not compatible with my 2e. Any advice?
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Welcome!
When using the 2e, do you have the capabilities? Their tool might not be reporting accurately, which I experienced with ATT and my Microsoft Lumia phones.