Friend receiving calls I did not make

One of my most frequently contacted friends asked me why I called her last night and I was a bit shocked cause I did not make the call. The call was not visible in my call log as well. Out of curiosity, I asked her to send me every missed call she received from me in the last few weeks. She sent me about 7 screen shots out of which 4 were not visible in my call logs. I know for sure it is not a matter of me deleting the logs as I do not even remember making the calls and also because some are at very odd times that I was asleep for sure.

They also seem to be facetime calls as well not through the carrier.

Any guidance regarding this is helpful. I have screenshots from both our ends for the relevant times.

I am running IOS 18.1.1 on an iphone 14 pro

She is running IOS 18.1.1 on an iphone 13