Cannot activate Wi-Fi calling on Pixel 3a

Once again I have to say please ignore the response from Att help, who was no help and incorrect. As long as you are using a physical Sim and a pixel 3A it can work with Wifi calling.

if your Sim card is very old it may not be provisioned properly for Wi-Fi calling. And the fact that you were previously using it in a non-compliant phone may also be a factor.

1.   I would suggest first calling AT&T and getting them to correct the IMEI and make sure your plan has HD voice.

 2.   You must be on a monthly plan - The two dollar per day plan, and $.25 per minute plan are not Wi-Fi calling compatible.

  3.    You must be inside the United States to set up Wi-Fi calling.

   4.  If you still don’t have Wi-Fi calling with all of those done then please replace the Sim card, cross our fingers and hope that it works.  

Hello @tjbarclay.

We're here to help with your Wi-Fi calling concerns.

As you stated, it is best to switch SIM when getting a new device.

• Did your Google Pixel 3a come with a SIM?
• Was your device purchased through AT&T?

In the meantime please try our Wi-Fi calling troubleshooting tool after changing to your device type.

Run through the guide in order to confirm device settings and functionality. You may also sign-in for a more personalized diagnostic.

Let us know how this helps.

Vincent, AT&T Community Specialist

As stated in my original post, I'm using the SIM card from my old Motorola G5+ so, no, the Pixel did not come with a SIM card.

I did not purchase the Pixel 3a from AT&T. 

Update: I did look at your troubleshooting tool and Pixel 3a is not even a choice so, this is not helpful.

Thank you for the update @tjbarclay.

It seems at this time that the Pixel 3a is not compatible with Wi-Fi calling on our network.

As time passes, this should change, but there is no set date for when this will happen.

Let us know if you have any other questions or concerns.

Vincent, AT&T Community Specialist

OK.  It would be much better if the message said "Wi-Fi calling is currently not available on this device" instead of the meaningless "Oops" messages.

@joey2007ua and @lizdance40

Thank you for the correct information.  I contacted support via on-line chat and asked them to update the IMEI number they had for my phone.  I didn't need a new SIM card since the one I'm using has 27 for the ninth and tenth digits.  After support updated the IMEI number for my phone, I was able to successfully activate Wi-Fi calling.

That's great to hear, @tjbarclay!

We're glad our online chat agent was able to provide assistance by updating your device's IMEI number so that you're now able to use Wi-Fi Calling.

Thank you for your participation in the AT&T Forums. We hope you enjoy the rest of your day.

Lar, AT&T Community Specialist

Awesome!  Glad it was that simple.