diff --git a/service/ServiceSupervisorPBx.php b/service/ServiceSupervisorPBx.php
index 44d7fe5..f3102a7 100644
--- a/service/ServiceSupervisorPBx.php
+++ b/service/ServiceSupervisorPBx.php
@@ -16,18 +16,24 @@ class ServiceSupervisorPBx implements IService
         $this->supervisorModel = new SupervisorModel;
         $agentes = $this->supervisorModel->listaAgentesDisponivel(null, false);
         foreach ($agentes as $key => $agente) {
-            $agentPbx = $this->validaAgentCriado($agente->matricula);
-            if (!$agentPbx) {
-                $this->criaRegistroSupervisor($agente);
+            if ($this->validaInatividade($agente->duracao)) {
+                $agentPbx = $this->validaAgentCriado($agente->matricula);
+                if (!$agentPbx) {
+                    $this->criaRegistroSupervisor($agente);
+                } else {
+                    $this->atualizaTabelaSupervisor($agente, $agentPbx);
+                }
             } else {
-                $this->atualizaTabelaSupervisor($agente, $agentPbx);
+                $this->supervisorModel->deleteAgent($agente->matricula);
             }
         }
         $agentesPbx = $this->supervisorModel->findAllAgentesPBX();
         foreach ($agentesPbx as $key => $pbx) {
-            $age = $this->supervisorModel->findAgentByMatricula($pbx->matricula);
-            if (empty($age) && empty($pbx->ramal)) {
-                $this->supervisorModel->deleteAgentPbx($pbx->matricula);
+            if (empty($pbx->ramal)) {
+                $age = $this->supervisorModel->findAgentByMatricula($pbx->matricula);
+                if (empty($age) && empty($pbx->ramal)) {
+                    $this->supervisorModel->deleteAgentPbx($pbx->matricula);
+                }
             }
         }
     }
@@ -84,4 +90,13 @@ class ServiceSupervisorPBx implements IService
         }
         return 0;
     }
+
+    function validaInatividade($dateTime)
+    {
+        $timealert = strtotime($dateTime . '+40 seconds');
+        if ($timealert < strtotime(date('Y-m-d H:i:s'))) {
+            return false;
+        }
+        return true;
+    }
 }
\ No newline at end of file