src/Collections/ButtonCollection.php
public function addCallButton($title, $phone)
    {
        $this->add(new Button(Button::TYPE_CALL, $title, $phone));

        return $this;
    }
public function addCallButton($title, $phone)
    {
        $this->add(new Button(Button::TYPE_CALL, $title, $phone));

        return $this;
    }
public function addCallButton ( $ title , $ phone ) { $ this -> add ( new Button ( Button :: TYPE_CALL , $ title , $ phone ) ) ; return $ this ; }
Add phone call button

@param $title
@param $phone

@return $this
@throws \Casperlaitw\LaravelFbMessenger\Exceptions\OnlyUseByItselfException
Add phone call button