diff --git a/MqttClient.cpp b/MqttClient.cpp
index 9977058..6c09e99 100644
--- a/MqttClient.cpp
+++ b/MqttClient.cpp
@@ -35,7 +35,7 @@ String MqttConfig::exec(String params) {
     *out << "broker ... set the broker's address" << endl;
     *out << "           followed by a restart, you need to" << endl;
     *out << "           about a minute" << endl;
-    *out << "add ...... add an mbus client, params: token address period" << endl;
+    *out << "add ...... add an mbus client, params: token name address period" << endl;
     *out << "del ...... delete an mbus client, params: index" << endl;
     *out << "reset .... reset configuration" << endl;
     *out << "           followed by a restart, you need to" << endl;
@@ -49,7 +49,8 @@ String MqttConfig::exec(String params) {
     for (uint8_t i = 0; i < NUM_OF_DEVICES; i++) {
       *out << i << ": " << mc->m_mbusDevTuple[i].token << ", " <<
           mc->m_mbusDevTuple[i].address << ", " <<
-          mc->m_mbusDevTuple[i].queryPeriod << endl;
+          mc->m_mbusDevTuple[i].queryPeriod << ", " <<
+          mc->m_mbusDevTuple[i].name << endl;
     }
     *out << "Broker: " << mc->m_mqttBroker << endl;
     *out << "Watchdog resets: " << WDOG_RSTCNT << endl;
@@ -74,6 +75,7 @@ String MqttConfig::exec(String params) {
     strncpy(paramBuf, params.c_str(), sizeof(paramBuf));
     paramPtr = paramBuf;
     char *tokenStr = 0;
+    char *nameStr = 0;
     char *addressStr = 0;
     char *periodStr = 0;
     if ((paramPtr != 0) && (*paramPtr != 0)){
@@ -83,6 +85,9 @@ String MqttConfig::exec(String params) {
     if ((paramPtr != 0) && (*paramPtr != 0)){
       tokenStr = strsep(&paramPtr, " ");
     }
+    if ((paramPtr != 0) && (*paramPtr != 0)){
+      nameStr = strsep(&paramPtr, " ");
+    }
     if ((paramPtr != 0) && (*paramPtr != 0)){
       addressStr = strsep(&paramPtr, " ");
     }
@@ -92,20 +97,25 @@ String MqttConfig::exec(String params) {
 
     if ((tokenStr != 0) && (*tokenStr != 0) &&
         (addressStr != 0) && (*addressStr != 0) &&
-        (periodStr != 0) && (*periodStr != 0)) {
+        (periodStr != 0) && (*periodStr != 0) &&
+        (nameStr != 0) && (*nameStr != 0)) {
       int token = atoi(tokenStr);
       bool validToken = ! ((token <= 0) || (token > 250));
+      bool validName = strlen(nameStr) < MAX_LEN_OF_NAME;
       int address = atoi(addressStr);
       bool validAddress = ! ((address <= 0) || (address > 250));
       int period = atoi(periodStr);
       bool validPeriod = ! ((period < 10) || (period > 3600));
 
-      if (validToken && validAddress && validPeriod) {
+      if (validToken && validAddress && validPeriod && validName) {
         uint8_t i = 0;
         while (mc->m_mbusDevTuple[i].address != 0) {
           i++;
         }
-        mc->m_mbusDevTuple[i] = { (uint8_t)token, (uint8_t)address, (uint16_t)period };
+        mc->m_mbusDevTuple[i].token = (uint8_t)token;
+        mc->m_mbusDevTuple[i].address = (uint8_t)address;
+        mc->m_mbusDevTuple[i].queryPeriod = (uint16_t)period;
+        strcpy(mc->m_mbusDevTuple[i].name, nameStr);
         configWrite(CONFIG_DEVICES, sizeof(mc->m_mbusDevTuple), (char*)mc->m_mbusDevTuple);
         res = "done";
       } else {
@@ -118,6 +128,9 @@ String MqttConfig::exec(String params) {
         if (! validPeriod) {
           *out << "Invalid period " << periodStr << endl;
         }
+        if (! validName) {
+          *out << "Invalid name " << nameStr << endl;
+        }
         res = "failure";
       }
     } else {
@@ -138,7 +151,11 @@ String MqttConfig::exec(String params) {
         res = "illegal index";
       } else {
         *out << "Index " << arg0 << " (" << idx << ") to be deleted" << endl;
-        mc->m_mbusDevTuple[idx] = {0, 0, 0, 0};
+        mc->m_mbusDevTuple[idx].token = 0;
+        strcpy(mc->m_mbusDevTuple[idx].name, "-");
+        mc->m_mbusDevTuple[idx].address = 0;
+        mc->m_mbusDevTuple[idx].queryPeriod = 0;
+        mc->m_mbusDevTuple[idx].timer = 0;
         configWrite(CONFIG_DEVICES, sizeof(mc->m_mbusDevTuple), (char*)mc->m_mbusDevTuple);
         res = "done";
       }
@@ -167,14 +184,15 @@ MqttClient::MqttClient(RequestSender *meterBusMaster) : m_mqttConfig(this),
 {
 }
 
-void MqttClient::sendResponse(uint8_t *responseBuffer, uint16_t responseBufferLength, uint8_t token) {
+void MqttClient::sendResponse(uint8_t *responseBuffer, uint16_t responseBufferLength, uint8_t token, char *name) {
   char strbuf[1024];
   memset(strbuf, sizeof(strbuf), 0);
   PString buf = PString(strbuf, sizeof(strbuf));
 
 
   buf << "{ \"metadata\": { \"device\": \"MeterbusHub\", " <<
-      "\"token\": " << token <<
+      "\"token\": " << token << ", " <<
+      "\"name\": \"" << String(name) << "\""
       "}, " <<
       "\"data\": {" <<
       "\"uptime\": " << m_uptime << ", " <<
@@ -205,9 +223,9 @@ void MqttClient::sendResponse(uint8_t *responseBuffer, uint16_t responseBufferLe
   }
 }
 
-void MqttClient::sendError(uint8_t code, uint8_t token) {
+void MqttClient::sendError(uint8_t code, uint8_t token, char *name) {
   String msg = String("{ \"metadata\": { \"device\": \"MeterbusHub\", \"error\": ")
-      + code + String(", \"token\": ") + token + String(" }, \"data\": { \"uptime\": ") + m_uptime + String("}}");
+      + code + String(", \"token\": ") + token + String(", \"name\": ") + String(name) + String(" }, \"data\": { \"uptime\": ") + m_uptime + String("}}");
   if (m_disconnectState == 0) {
     //Serial << "publishing " << msg << endl;
     //Serial << "length: " << msg.length() << endl;
@@ -222,10 +240,12 @@ void MqttClient::begin(CmdServer *cmdServer) {
 
   if (! configIsValid()) {
     for (uint8_t i = 0; i < NUM_OF_DEVICES; i++) {
-      m_mbusDevTuple[i] = { 0, 0, 0, 0 };
+      m_mbusDevTuple[i].token = 0;
+      strcpy(m_mbusDevTuple[i].name, "-");
+      m_mbusDevTuple[i].address = 0;
+      m_mbusDevTuple[i].queryPeriod = 0;
+      m_mbusDevTuple[i].timer = 0;
     }
-    m_mbusDevTuple[0] = { 1, 0x53, 10, 0 }; // light meter
-    m_mbusDevTuple[1] = { 2, 32,   10, 0 }; // electrity
     configWrite(CONFIG_DEVICES, sizeof(m_mbusDevTuple), (char*)m_mbusDevTuple);
 
     strcpy(m_mqttBroker, MQTT_BROKER_DEFAULT);
@@ -318,7 +338,7 @@ void MqttClient::exec() {
           sendBuffer[2] = m_mbusDevTuple[m_deviceIdx].address;
           sendBuffer[3] = (uint8_t)(sendBuffer[1] + sendBuffer[2]);
           sendBuffer[4] = 0x16;
-          m_meterBusMaster->sendBufferReady(5, m_mbusDevTuple[m_deviceIdx].token, this);
+          m_meterBusMaster->sendBufferReady(5, m_mbusDevTuple[m_deviceIdx].token, m_mbusDevTuple[m_deviceIdx].name, this);
         } else {
           Serial << "no send buffer ready" << endl;
         }
diff --git a/MqttClient.h b/MqttClient.h
index f2b8029..14d3c17 100644
--- a/MqttClient.h
+++ b/MqttClient.h
@@ -16,9 +16,10 @@
 
 
 #define NUM_OF_DEVICES 10
-
+#define MAX_LEN_OF_NAME 16
 typedef struct {
   uint8_t token;
+  char name[MAX_LEN_OF_NAME+1];
   uint8_t address;
   uint16_t queryPeriod;
   uint16_t timer;
@@ -43,8 +44,8 @@ public:
   MqttClient(RequestSender *meterBusMaster);
   void begin(CmdServer *cmdServer);
   void exec();
-  virtual void sendResponse(uint8_t *responseBuffer, uint16_t responseBufferLength, uint8_t token);
-  virtual void sendError(uint8_t code, uint8_t token);
+  virtual void sendResponse(uint8_t *responseBuffer, uint16_t responseBufferLength, uint8_t token, char *name);
+  virtual void sendError(uint8_t code, uint8_t token, char *name);
   friend class MqttConfig;
 private:
   MqttConfig m_mqttConfig;
diff --git a/config.cpp b/config.cpp
index c136775..3261300 100644
--- a/config.cpp
+++ b/config.cpp
@@ -10,15 +10,17 @@
 #include "config.h"
 
 static bool __configIsValid = false;
+const uint32_t CONFIG_MAGIC_TOKEN = 0xAffe0003;
+
 
 void configInit() {
   uint32_t magic;
   configRead(CONFIG_MAGIC, 4, (char*)&magic);
-  __configIsValid = (magic != 0xdeadbeef);
+  __configIsValid = (magic != CONFIG_MAGIC_TOKEN);
 
   if (! __configIsValid) {
     Serial << "Initialize config" << endl;
-    uint32_t setMagic = 0xdeadbeef;
+    uint32_t setMagic = CONFIG_MAGIC_TOKEN;
     configWrite(CONFIG_MAGIC, 4, (char*)&setMagic);
   } else {
     Serial << "Config valid" << endl;
diff --git a/config.h b/config.h
index 744f90a..75d07d0 100644
--- a/config.h
+++ b/config.h
@@ -16,9 +16,10 @@ void configReset();
 void configRead(int addr, uint8_t len, char *buffer);
 void configWrite(int addr, uint8_t len, char *buffer);
 
+
+
 #define CONFIG_MAGIC 0    // 4
-#define CONFIG_DEVICES 4  // 64
-#define CONFIG_BROKER 68  // 64
-#define CONFIG_NEXT 132
+#define CONFIG_BROKER 4  // 64
+#define CONFIG_DEVICES 68  // 64
 
 #endif /* CONFIG_H_ */
diff --git a/mBusDialog.h b/mBusDialog.h
index bcdaa29..510fd6d 100644
--- a/mBusDialog.h
+++ b/mBusDialog.h
@@ -6,14 +6,14 @@
 
 class ResponseCallback {
 public:
-  virtual void sendResponse(uint8_t *responseBuffer, uint16_t responseBufferLength, uint8_t token) =0;
-  virtual void sendError(uint8_t code, uint8_t token) = 0;
+  virtual void sendResponse(uint8_t *responseBuffer, uint16_t responseBufferLength, uint8_t token, char *name) =0;
+  virtual void sendError(uint8_t code, uint8_t token, char *name) = 0;
 };
 
 class RequestSender {
 public:
   virtual uint8_t *getSendBuffer() =0;
-  virtual void sendBufferReady(uint16_t bufLen, uint8_t token, ResponseCallback *responseCallback) =0;
+  virtual void sendBufferReady(uint16_t bufLen, uint8_t token, char *name, ResponseCallback *responseCallback) =0;
 };
 
 
diff --git a/meterBusMaster.cpp b/meterBusMaster.cpp
index 317db06..540ebfc 100644
--- a/meterBusMaster.cpp
+++ b/meterBusMaster.cpp
@@ -99,12 +99,12 @@ String SendOctets::exec(String params) {
   if (err) {
     return "error";
   } else {
-    m_meterBusMaster->sendBufferReady(sendBufLen, 1, this);
+    m_meterBusMaster->sendBufferReady(sendBufLen, 1, 0, this);
     return "success";
   }
 }
 
-void SendOctets::sendResponse(uint8_t *responseBuffer, uint16_t responseBufferLength, uint8_t token) {
+void SendOctets::sendResponse(uint8_t *responseBuffer, uint16_t responseBufferLength, uint8_t token, char *name) {
   Print *out = m_server;
   out->print("SO RESP: ");
   uint16_t i = 0;
@@ -122,7 +122,7 @@ void SendOctets::sendResponse(uint8_t *responseBuffer, uint16_t responseBufferLe
   out->println("");
 }
 
-void SendOctets::sendError(uint8_t code, uint8_t token) {
+void SendOctets::sendError(uint8_t code, uint8_t token, char *name) {
   switch (code) {
   case 1:
     m_server->println("SO RESP: no resp.");
@@ -160,12 +160,13 @@ uint8_t *MeterBusMaster::getSendBuffer() {
   return m_expectResponse ? 0 : m_sendBuffer;
 }
 
-void MeterBusMaster::sendBufferReady(uint16_t sendBufLen, uint8_t token, ResponseCallback *responseCallback) {
+void MeterBusMaster::sendBufferReady(uint16_t sendBufLen, uint8_t token, char *name, ResponseCallback *responseCallback) {
   m_cmdReadyToSend = true;
   m_retransmitCount = 0;
   m_sendBufLen = sendBufLen;
   m_responseCallback = responseCallback;
   m_token = token;
+  m_name = name;
 }
 
 void MeterBusMaster::prepareResponse(bool err, uint8_t in) {
@@ -177,7 +178,7 @@ void MeterBusMaster::prepareResponse(bool err, uint8_t in) {
   if (err) {
     //Serial << "r1" << endl;
     if (m_responseCallback != 0) {
-      m_responseCallback->sendError(1, m_token);
+      m_responseCallback->sendError(1, m_token, m_name);
     }
     expectedChars = 0;
     state = 0;
@@ -225,7 +226,7 @@ void MeterBusMaster::prepareResponse(bool err, uint8_t in) {
     if (expectedChars == 0) {
       //Serial << "r9" << endl;
       if (m_responseCallback != 0) {
-        m_responseCallback->sendResponse(m_recvBuffer, m_recvBufLen, m_token);
+        m_responseCallback->sendResponse(m_recvBuffer, m_recvBufLen, m_token, m_name);
       }
       m_expectResponse = false;
       m_token = 0;
diff --git a/meterBusMaster.h b/meterBusMaster.h
index 11b1ff5..372f1ad 100644
--- a/meterBusMaster.h
+++ b/meterBusMaster.h
@@ -24,8 +24,8 @@ public:
   virtual String getCmdName() { return "SO"; }
   virtual String getHelp() { return "Send octets"; }
   virtual String exec(String params);
-  virtual void sendResponse(uint8_t *responseBuffer, uint16_t responseBufferLength, uint8_t token);
-  virtual void sendError(uint8_t code, uint8_t token);
+  virtual void sendResponse(uint8_t *responseBuffer, uint16_t responseBufferLength, uint8_t token, char *name);
+  virtual void sendError(uint8_t code, uint8_t token, char *name);
 private:
   RequestSender *m_meterBusMaster;
 };
@@ -62,7 +62,7 @@ public:
   void begin(CmdServer *cmdServer);
   void exec();
   uint8_t *getSendBuffer();
-  void sendBufferReady(uint16_t bufLen, uint8_t token, ResponseCallback *responseCallback);
+  void sendBufferReady(uint16_t bufLen, uint8_t token, char *name, ResponseCallback *responseCallback);
   friend class CalibrationSupport;
 private:
   SendOctets m_sendOctets;
@@ -75,6 +75,7 @@ private:
   uint16_t m_recvBufLen;
   uint8_t m_retransmitCount;
   uint8_t m_token;
+  char *m_name;
   ResponseCallback *m_responseCallback;
   uint8_t m_sendBuffer[SEND_BUFFER_SIZE];
   uint8_t m_recvBuffer[RECEIVE_BUFFER_SIZE];
diff --git a/meterBusServer.cpp b/meterBusServer.cpp
index 26d4463..af5035e 100644
--- a/meterBusServer.cpp
+++ b/meterBusServer.cpp
@@ -7,11 +7,11 @@ MeterBusServer::MeterBusServer(uint16_t port, RequestSender *meterBusMaster) :
     m_server(port), m_client(255), m_meterBusMaster(meterBusMaster) {
 }
 
-void MeterBusServer::sendResponse(uint8_t *responseBuffer, uint16_t responseBufferLength, uint8_t token) {
+void MeterBusServer::sendResponse(uint8_t *responseBuffer, uint16_t responseBufferLength, uint8_t token, char *name) {
   m_server.write(responseBuffer, responseBufferLength);
 }
 
-void MeterBusServer::sendError(uint8_t code) {
+void MeterBusServer::sendError(uint8_t code, uint8_t token, char *name) {
 
 }
 
@@ -31,7 +31,7 @@ void MeterBusServer::exec() {
         *(sendBuffer + sendBufLen) = ch;
         sendBufLen++;
       }
-      m_meterBusMaster->sendBufferReady(sendBufLen, 1, this);
+      m_meterBusMaster->sendBufferReady(sendBufLen, 1, 0, this);
     }
   }
 }
diff --git a/meterBusServer.h b/meterBusServer.h
index 297e22f..ceb0212 100644
--- a/meterBusServer.h
+++ b/meterBusServer.h
@@ -18,8 +18,8 @@ public:
   MeterBusServer(uint16_t port, RequestSender *meterBusMaster);
   void begin();
   void exec();
-  virtual void sendResponse(uint8_t *responseBuffer, uint16_t responseBufferLength, uint8_t token);
-  virtual void sendError(uint8_t code);
+  virtual void sendResponse(uint8_t *responseBuffer, uint16_t responseBufferLength, uint8_t token, char *name);
+  virtual void sendError(uint8_t code, uint8_t token, char *name);
 private:
   EthernetServer m_server;
   EthernetClient m_client;