def system_multicall(self, call_list):
        """system.multicall([{'methodName': 'add', 'params': [2, 2]}, ...]) => \
[[4], ...]

        Allows the caller to package multiple XML-RPC calls into a single
        request.

        See http://www.xmlrpc.com/discuss/msgReader$1208
        """

        results = []
        for call in call_list:
            method_name = call['methodName']
            params = call['params']

            try:
                # XXX A marshalling error in any response will fail the entire
                # multicall. If someone cares they should fix this.
                results.append([self._dispatch(method_name, params)])
            except Fault as fault:
                results.append(
                    {'faultCode' : fault.faultCode,
                     'faultString' : fault.faultString}
                    )
            except:
                exc_type, exc_value, exc_tb = sys.exc_info()
                results.append(
                    {'faultCode' : 1,
                     'faultString' : "%s:%s" % (exc_type, exc_value)}
                    )
        return results