fix record

src/core/callcenter/esl/client.py

@@ -579,6 +579,13 @@ class OutboundClient:
                     self.server.logger.info("Failed to connect to FreeSWITCH")
             except:
                 traceback.print_exc()
+            finally:
+                try:
+                    if self.request.fileno() != -1:
+                        self.request.close()
+                except OSError:
+                    # Ignore the error if socket is already closed
+                    pass
 
         def build_call_info(self, call_id, device_id, new_device_id, destination, bucket_type, **kwargs):
             caller = kwargs.get('Channel-Caller-ID-Number')