Works unless it is muted.

Find My iPhone app might be able to locate it

And, unfortunately, it will only ring for people in my contact list. I don't think find my phone will work, either.

Use email or messaging to reach them and request a callback.

Might try FaceTime from another Apple device

They weren't responding.

It is on Find My Phone. You have to click on the device, and it will send a tone to your phone.

It was in the pocket of my robe on the back of the bedroom door. I do that a lot - put it in my robe and forget. I once even put the robe in the laundry hamper. You'd think I'd know by now.

Thanks, all.

It's among the reasons I keep a landline.

let me know if you find a solution/way because my friend is finding a way to get my IPhone SE to ring.

I think it's under devices. Click on your phone, and there's an option to make the phone emit a tone