Grandmas Love Phones
The best thing on the other end is usually you. Make it easy for the generations to call each other, using the phones that suit them.
Updated

There is a particular kind of call that starts with “Nothing much, just wanted to say hi” and somehow becomes the best part of someone’s afternoon.
Not every grandma wants the same phone, or the same calling routine. But many would welcome more of those ordinary little calls from their children and grandchildren. You do not need a major announcement to have something worth sharing.
Let her keep the phone she likes
If Grandma is happy with her existing mobile or home phone, a Doorman household with an appropriately configured outside calling provider can call that number. She does not need to buy matching hardware to hear about the school play.
Save her number where the kids can find it. Agree on a good time to call. If answering a video app involves finding a charger, updating software, and remembering which button means “accept,” a familiar ringing phone may be the easier invitation.
Sometimes a quieter front door would help
Another household might want more control over who gets through. A Doorman setup can give known callers a direct path while sending unfamiliar callers through its configured lobby or other rules. The person managing the system can choose a more restrictive approach and review it with Grandma.
Plan for the callers she actually needs: friends, the doctor’s office, a neighbor, and family using a different number. Test the rules together, including how an unexpected legitimate caller can reach her.
Caller screening can reduce unwanted interruptions. It does not prove who is speaking, guarantee that a familiar number is genuine, or identify every imitation voice. Agree on a simple family habit for unusual urgent requests: pause and call back using a number already saved. Nobody should have to make a money decision just because a voice sounds familiar.
Make calling a habit she gets a say in
Ask whether she likes an after-school call, a Sunday catch-up, or spontaneous updates. Let the kids do some of the talking: describe the game, ask about her garden, or tell the joke again even if she has heard it twice.
The phone is useful because it gets out of the way. Whether she keeps her current handset or chooses a Doorman system, the point is the conversation she gets to have.