Create a small script for calling , that call with a real phone number also have caller id with all functions for professional PHP

function call($number, $caller_id = null) {
  if($caller_id) {
    echo "Calling {$number} from {$caller_id}..";
  } else {
    echo "Calling {$number}..";
  }
}

call("123-456-7890");
call("123-456-7890", "555-666-7777");