diff --git a/core/mogo-core-function-call/src/main/java/com/mogo/eagle/core/function/call/telematic/CallerTelematicListenerManager.kt b/core/mogo-core-function-call/src/main/java/com/mogo/eagle/core/function/call/telematic/CallerTelematicListenerManager.kt
index 45c9c16f6c..29f51e01be 100644
--- a/core/mogo-core-function-call/src/main/java/com/mogo/eagle/core/function/call/telematic/CallerTelematicListenerManager.kt
+++ b/core/mogo-core-function-call/src/main/java/com/mogo/eagle/core/function/call/telematic/CallerTelematicListenerManager.kt
@@ -9,6 +9,15 @@ object CallerTelematicListenerManager: CallerBase<IReceivedMsgListener>() {
 
     private const val TAG = "CallerTelematicListenerManager"
 
+    private var sn: String? = null
+
+    override fun doSomeAfterAddListener(tag: String, listener: IReceivedMsgListener) {
+        super.doSomeAfterAddListener(tag, listener)
+        if (!sn.isNullOrEmpty()) {
+            listener.onReceivedServerSn(sn)
+        }
+    }
+
     fun invokeReceivedMsg(type: Int, byteArray: ByteArray) {
         M_LISTENERS.forEach {
             val listener = it.value
@@ -21,6 +30,7 @@ object CallerTelematicListenerManager: CallerBase<IReceivedMsgListener>() {
     }
 
     fun dispatchServerSn(sn: String?) {
+        this.sn = sn
         M_LISTENERS.forEach {
             val listener = it.value
             try {