Site::isPhoneConfirmed

static function isPhoneConfirmed(int $siteId): bool
    {
    static $checkedSites = [];

    if (array_key_exists($siteId, $checkedSites))
    {
	    return $checkedSites[$siteId];
    }

    $checkedSites[$siteId] = true;

    if (Loader::includeModule('bitrix24'))
    {
	    $checkedSites[$siteId] = (new PhoneVerify('landing_site', $siteId))->isVerified();
    }

    return $checkedSites[$siteId];
    }