diff --git a/omci_state.go b/omci_state.go
index 6af433f..34d5b5e 100644
--- a/omci_state.go
+++ b/omci_state.go
@@ -18,6 +18,7 @@
 import (
 	"errors"
 	"fmt"
+	log "github.com/sirupsen/logrus"
 )
 
 type OnuOmciState struct {
@@ -78,3 +79,8 @@
 	errmsg := fmt.Sprintf("ONU {intfid:%d, onuid:%d} - Failed to find a key in OnuOmciStateMap", intfId, onuId)
 	return 0, errors.New(errmsg)
 }
+
+func CheckIsTeo() string {
+	log.Warn("It's TEO!")
+	return "It's TEO!"
+}