diff --git a/backend/services/controller/internal/api/api.go b/backend/services/controller/internal/api/api.go
index ca7bd07..be73415 100644
--- a/backend/services/controller/internal/api/api.go
+++ b/backend/services/controller/internal/api/api.go
@@ -94,7 +94,7 @@ func StartApi(a Api) {
 	log.Println("Running Api at port", a.Port)
 }
 
-func (a *Api) uspCall(msg usp_msg.Msg, sn string, w http.ResponseWriter) {
+func (a *Api) uspCall(msg usp_msg.Msg, sn string, w http.ResponseWriter, device db.Device) {
 
 	encodedMsg, err := proto.Marshal(&msg)
 	if err != nil {
@@ -113,6 +113,7 @@ func (a *Api) uspCall(msg usp_msg.Msg, sn string, w http.ResponseWriter) {
 	a.MsgQueue[msg.Header.MsgId] = make(chan usp_msg.Msg)
 	a.QMutex.Unlock()
 	log.Println("Sending Msg:", msg.Header.MsgId)
+	//TODO: Check what MTP the device is connected to
 	a.Broker.Publish(tr369Message, "oktopus/v1/agent/"+sn, "oktopus/v1/api/"+sn, false)
 
 	select {
diff --git a/backend/services/controller/internal/api/device.go b/backend/services/controller/internal/api/device.go
index b5d98ae..5719d48 100644
--- a/backend/services/controller/internal/api/device.go
+++ b/backend/services/controller/internal/api/device.go
@@ -6,6 +6,7 @@ import (
 	"net/http"
 
 	"github.com/gorilla/mux"
+	"github.com/leandrofars/oktopus/internal/db"
 	usp_msg "github.com/leandrofars/oktopus/internal/usp_message"
 	"github.com/leandrofars/oktopus/internal/utils"
 	"go.mongodb.org/mongo-driver/mongo"
@@ -14,7 +15,7 @@ import (
 func (a *Api) deviceGetSupportedParametersMsg(w http.ResponseWriter, r *http.Request) {
 	vars := mux.Vars(r)
 	sn := vars["sn"]
-	a.deviceExists(sn, w)
+	device := a.deviceExists(sn, w)
 
 	var receiver usp_msg.GetSupportedDM
 
@@ -26,7 +27,7 @@ func (a *Api) deviceGetSupportedParametersMsg(w http.ResponseWriter, r *http.Req
 	}
 
 	msg := utils.NewGetSupportedParametersMsg(receiver)
-	a.uspCall(msg, sn, w)
+	a.uspCall(msg, sn, w, device)
 }
 
 func (a *Api) retrieveDevices(w http.ResponseWriter, r *http.Request) {
@@ -47,7 +48,7 @@ func (a *Api) retrieveDevices(w http.ResponseWriter, r *http.Request) {
 func (a *Api) deviceCreateMsg(w http.ResponseWriter, r *http.Request) {
 	vars := mux.Vars(r)
 	sn := vars["sn"]
-	a.deviceExists(sn, w)
+	device := a.deviceExists(sn, w)
 
 	var receiver usp_msg.Add
 
@@ -59,14 +60,14 @@ func (a *Api) deviceCreateMsg(w http.ResponseWriter, r *http.Request) {
 	}
 
 	msg := utils.NewCreateMsg(receiver)
-	a.uspCall(msg, sn, w)
+	a.uspCall(msg, sn, w, device)
 }
 
 func (a *Api) deviceGetMsg(w http.ResponseWriter, r *http.Request) {
 	vars := mux.Vars(r)
 	sn := vars["sn"]
 
-	a.deviceExists(sn, w)
+	device := a.deviceExists(sn, w)
 
 	var receiver usp_msg.Get
 
@@ -78,14 +79,14 @@ func (a *Api) deviceGetMsg(w http.ResponseWriter, r *http.Request) {
 	}
 
 	msg := utils.NewGetMsg(receiver)
-	a.uspCall(msg, sn, w)
+	a.uspCall(msg, sn, w, device)
 }
 
 func (a *Api) deviceOperateMsg(w http.ResponseWriter, r *http.Request) {
 	vars := mux.Vars(r)
 	sn := vars["sn"]
 
-	a.deviceExists(sn, w)
+	device := a.deviceExists(sn, w)
 
 	var receiver usp_msg.Operate
 
@@ -97,13 +98,13 @@ func (a *Api) deviceOperateMsg(w http.ResponseWriter, r *http.Request) {
 	}
 
 	msg := utils.NewOperateMsg(receiver)
-	a.uspCall(msg, sn, w)
+	a.uspCall(msg, sn, w, device)
 }
 
 func (a *Api) deviceDeleteMsg(w http.ResponseWriter, r *http.Request) {
 	vars := mux.Vars(r)
 	sn := vars["sn"]
-	a.deviceExists(sn, w)
+	device := a.deviceExists(sn, w)
 
 	var receiver usp_msg.Delete
 
@@ -115,7 +116,7 @@ func (a *Api) deviceDeleteMsg(w http.ResponseWriter, r *http.Request) {
 	}
 
 	msg := utils.NewDelMsg(receiver)
-	a.uspCall(msg, sn, w)
+	a.uspCall(msg, sn, w, device)
 
 	//a.Broker.Request(tr369Message, usp_msg.Header_GET, "oktopus/v1/agent/"+sn, "oktopus/v1/get/"+sn)
 
@@ -124,7 +125,7 @@ func (a *Api) deviceDeleteMsg(w http.ResponseWriter, r *http.Request) {
 func (a *Api) deviceUpdateMsg(w http.ResponseWriter, r *http.Request) {
 	vars := mux.Vars(r)
 	sn := vars["sn"]
-	a.deviceExists(sn, w)
+	device := a.deviceExists(sn, w)
 
 	var receiver usp_msg.Set
 
@@ -136,26 +137,26 @@ func (a *Api) deviceUpdateMsg(w http.ResponseWriter, r *http.Request) {
 	}
 
 	msg := utils.NewSetMsg(receiver)
-	a.uspCall(msg, sn, w)
+	a.uspCall(msg, sn, w, device)
 }
 
-func (a *Api) deviceExists(sn string, w http.ResponseWriter) {
-	_, err := a.Db.RetrieveDevice(sn)
+func (a *Api) deviceExists(sn string, w http.ResponseWriter) db.Device {
+	device, err := a.Db.RetrieveDevice(sn)
 	if err != nil {
 		if err == mongo.ErrNoDocuments {
 			w.WriteHeader(http.StatusBadRequest)
 			json.NewEncoder(w).Encode("No device with serial number " + sn + " was found")
-			return
 		}
 		w.WriteHeader(http.StatusInternalServerError)
-		return
+		return device
 	}
+	return device
 }
 
 func (a *Api) deviceGetParameterInstances(w http.ResponseWriter, r *http.Request) {
 	vars := mux.Vars(r)
 	sn := vars["sn"]
-	a.deviceExists(sn, w)
+	device := a.deviceExists(sn, w)
 
 	var receiver usp_msg.GetInstances
 
@@ -167,5 +168,5 @@ func (a *Api) deviceGetParameterInstances(w http.ResponseWriter, r *http.Request
 	}
 
 	msg := utils.NewGetParametersInstancesMsg(receiver)
-	a.uspCall(msg, sn, w)
+	a.uspCall(msg, sn, w, device)
 }
diff --git a/backend/services/controller/internal/api/fw_update.go b/backend/services/controller/internal/api/fw_update.go
index bac2134..c32eec4 100644
--- a/backend/services/controller/internal/api/fw_update.go
+++ b/backend/services/controller/internal/api/fw_update.go
@@ -19,7 +19,7 @@ type FwUpdate struct {
 func (a *Api) deviceFwUpdate(w http.ResponseWriter, r *http.Request) {
 	vars := mux.Vars(r)
 	sn := vars["sn"]
-	a.deviceExists(sn, w)
+	device := a.deviceExists(sn, w)
 
 	var payload FwUpdate
 
@@ -101,7 +101,7 @@ func (a *Api) deviceFwUpdate(w http.ResponseWriter, r *http.Request) {
 	}
 
 	msg = utils.NewOperateMsg(receiver)
-	a.uspCall(msg, sn, w)
+	a.uspCall(msg, sn, w, device)
 }
 
 // Check which fw image is activated
diff --git a/backend/services/controller/internal/db/device.go b/backend/services/controller/internal/db/device.go
index 3ba7bf4..ee9b92b 100644
--- a/backend/services/controller/internal/db/device.go
+++ b/backend/services/controller/internal/db/device.go
@@ -1,10 +1,20 @@
 package db
 
 import (
+	"log"
+
 	"go.mongodb.org/mongo-driver/bson"
 	"go.mongodb.org/mongo-driver/mongo"
 	"go.mongodb.org/mongo-driver/mongo/options"
-	"log"
+)
+
+type MTP int32
+
+const (
+	UNDEFINED MTP = iota
+	MQTT
+	STOMP
+	WEBSOCKETS
 )
 
 type Device struct {
@@ -14,6 +24,7 @@ type Device struct {
 	Vendor   string
 	Version  string
 	Status   uint8
+	MTP      []map[string]string
 }
 
 func (d *Database) CreateDevice(device Device) error {
@@ -59,3 +70,17 @@ func (d *Database) RetrieveDevice(sn string) (Device, error) {
 func (d *Database) DeleteDevice() {
 
 }
+
+func (m MTP) String() string {
+	switch m {
+	case UNDEFINED:
+		return "unknown"
+	case MQTT:
+		return "mqtt"
+	case STOMP:
+		return "stomp"
+	case WEBSOCKETS:
+		return "websockets"
+	}
+	return "unknown"
+}
diff --git a/backend/services/controller/internal/mqtt/mqtt.go b/backend/services/controller/internal/mqtt/mqtt.go
index 4d0e3fd..2321afe 100644
--- a/backend/services/controller/internal/mqtt/mqtt.go
+++ b/backend/services/controller/internal/mqtt/mqtt.go
@@ -285,7 +285,12 @@ func (m *Mqtt) handleNewDevicesResponse(p []byte, sn string) {
 	device.Model = msg.ReqPathResults[1].ResolvedPathResults[0].ResultParams["ModelName"]
 	device.Version = msg.ReqPathResults[2].ResolvedPathResults[0].ResultParams["SoftwareVersion"]
 	device.SN = sn
-	device.Status = utils.Online
+
+	mtp := map[string]string{
+		db.MQTT.String(): "online",
+	}
+
+	device.MTP = append(device.MTP, mtp)
 
 	err = m.DB.CreateDevice(device)
 	if err != nil {