LTD And phone calls

I noticed LTD insurer called twice last week when I wasn’t home.
but left no message.
Should I call them?
They usually email me but didn’t ?

Please advise

If the insurer is like mine, they are huge and have a call center.
I would call the general number and see if they can can tell you who called.
Someone wants to talk to you so I would call back (once).