AN UNBIASED VIEW OF SPAM CALL

someone online video called me yesterday 8/6/24 from my son's gmail , I thought it had been him then I answered, no-one was there to reply, I hung up, then texted my son he claimed it was not him, will that be a means for scammers to get into my cellular phone and get my facts???? what must I do?I wish to know the way I can verify if an e-mail is r