docs: def routeCoverage(self, msisdn):
          """
          If the route coverage lookup encounters an error, we will treat it as "not covered".
          """
          content = self.parseRest(self.request('rest/coverage/' + str(msisdn)))
  
          return {
              'routable': content['routable'],
              'destination': content['destination'].encode('utf-8'),
              'charge': float(content['minimumCharge'])
          }