public function smsPricing ($country_code) {
			$country_code = strtoupper($country_code);

			if (!isset($this->cache['country_codes']))
				$this->cache['country_codes'] = array();

			if (!isset($this->cache['country_codes'][$country_code])) {
				$tmp = $this->apiCall('get_pricing', array('country_code'=>$country_code));
				if (!$tmp['data']) return false;

				$this->cache['country_codes'][$country_code] = $tmp['data'];
			}

			return (float)$this->cache['country_codes'][$country_code]['mt'];
		}