Transferring Micro cell to my name

@BeckyMax - the MicroCell is independent of Uverse or any other internet service.

You need to have a post paid AT&T cellular account to register and activate a MicroCell and you will also need to make sure that the owner deactivates their MicroCell before leaving it for you in case you choose to use it. They will have to go to their myAT&T MicroCell Settings page and deactivate it there. If they don't, you'll end up with a bookend.

Using a corporate supplied cell phone to activate a personal MicroCell  has been done in the past (rarely) but it is a real pain in the *** to get it to activate. I wouldn't recommend it.

I would love to be able to avoid it, but my husband works from home and has to have service.  Maybe we will find out if we can forward his calls to our home phone.  

My sister has an AT&T account, perhaps I can have her activate it and then add all our phones?

@BeckyMax - By home phone do you mean AT&T's Home Phone or do mean an ordinary landline?

If your sister has a post paid AT&T account, she could register and activate the MicroCell at her house and let it go for a couple of days to make sure it is ok. Then, she could take it over to your house, change the address on the myAT&T MicroCell Settings page from hers to yours, and Save. Her phone number would still be listed as the primary number and then she could just add other AT&T phones, pre paid and post paid, to the Approved Users List and those phones should register to the MicroCell so they could be used at your house. The idea of that is one could take their MicroCell to a summer home and use it as long as all of the other conditions of registration/activation, and other requirements are met.

If it's a white MicroCell those are the old models. They still work in most cases but most folks develop issues with the ac adapter, which is easily fixable, but it can be frustrating trying to setup a MicroCell with a failing adapter. If you do go with the previous owner's MicroCell, and they properly deactivate it, then we can show you how to check the adapter.

Keep in mind that all of this is dependent on your ISP and equipment. I would read my Tech Guide (see link in my sig line) on router requirements, etc beforehand.

If your phones are WiFi-C (WiFi Calling) capable, then you wouldn't need the MicroCell and you could use your WiFi connection. I much prefer WiFi-C instead of the MicroCell but we are a mixed environment so I need to keep the MicroCell online.

@BeckyMax - WiFi-C is available on iPhone 5SE and above. A 5S is not capable.

If you have Charter VoIP there may be an issue. A lot of times they will provide the hardware (router or gateway) that is configured for their service which may not be compatible with the MicroCell. Charter is, and has, gone thru some networking changes with their merger with TWC/Spectrum so we have seen issues if you have Charter VoIP and want to use AT&T's VoIP service which is the MicroCell. Charter will not help you with the MicroCell and will in fact blame any problems on the MicroCell and not their network configuration. The MicroCell can and does work quite well with Charter as long as you don't have their VoIP service  and specially configured hardware.

The black MicroCell (DPH-154) is the newest model but it still wouldn't hurt to check the ac adapter just to be sure. Easy to do.

Thank you. If I'm not around @Avedis53 pops in and helps as well.