code: def _parse_response(self, result_page):
          
          # Sample result_page, single line -> "OK: 0; Sent queued message ID: 2063619577732703 SMSGlobalMsgID:6171799108850954"
          resultline = result_page.splitlines()[0] # get result line
          if resultline.startswith('ERROR:'):
              raise Exception(resultline.replace('ERROR: ', ''))
          patt = re.compile(r'^.+?:\s*(.+?)\s*;\s*Sent queued message ID:\s*(.+?)\s*SMSGlobalMsgID:(.+?)$', re.IGNORECASE)
          m = patt.match(resultline)
          if m:
              return (m.group(1), m.group(2), m.group(3)) 
          return None
docs: Takes a result page of sending the sms, returns an extracted tuple:
              ('numeric_err_code', '<sent_queued_message_id>', '<smsglobalmsgid>')
          Returns None if unable to extract info from result_page, it should be
          safe to assume that it was either a failed result or worse, the interface
          contract has changed.