diff --git a/src/main/java/messagerosa/core/model/DeviceType.java b/src/main/java/messagerosa/core/model/DeviceType.java
new file mode 100644
index 0000000..0832a69
--- /dev/null
+++ b/src/main/java/messagerosa/core/model/DeviceType.java
@@ -0,0 +1,22 @@
+package messagerosa.core.model;
+
+public enum DeviceType {
+    PHONE("phone");
+
+    private String name;
+
+    DeviceType(String deviceType) {
+        name=deviceType;
+    }
+
+    public String toString(){
+        return name;
+    }
+
+    public static String getEnumByString(String code){
+        for(DeviceType e : DeviceType.values()){
+            if(e.name.equals(code)) return e.name();
+        }
+        return null;
+    }
+}
diff --git a/src/main/java/messagerosa/core/model/SenderReceiverInfo.java b/src/main/java/messagerosa/core/model/SenderReceiverInfo.java
index 5b9315b..92ee556 100644
--- a/src/main/java/messagerosa/core/model/SenderReceiverInfo.java
+++ b/src/main/java/messagerosa/core/model/SenderReceiverInfo.java
@@ -19,12 +19,12 @@ public class SenderReceiverInfo {
 
 	// persist
 	private String userID;
-
 	private ArrayList<String> groups;
-
 	private String campaignID;
 	private String formID;
 	private boolean bot;
 	private boolean broadcast;
 	private Map<String, String> meta;
+	private DeviceType deviceType;
+	private String deviceID;
 }