Help needed for this coin. It should be byzantine or I am wrong?

I know it looks like roman, but the letter "ф" (second picture) makes me think it's byzantine

This looks Roman, earlier part of the third century. It is a "Greek Imperial" issue, i.e. a coin struck by a Greek city inside the Roman Empire.

I think the obverse legend reads:

AYT --- IOYΛ ΦIΛIΠΠ--- --- ---

Something like Moushmov 3501 or Moushnov 3510 on this Wildwinds page. You can also scroll down for all facing busts, i.e. him on the left with Otacilia Severa on the right.

thank you very much. I found the exact coin