You must be busy with your 7-month-old because your posts are unclear.
If you can move your SIM, use an old-fashioned method: have your wife call you.
Subject to the usual (there-are-no-free-markets) locking limits, your SIM is portable and allows you to receive calls (only) on whichever phone it is installed; data service is separate and tied to your/a phone, and atandt has to switch/set that to one phone or another, with each switch.