--- mp_engine.cc.origin 2017-02-22 22:21:50.900046045 +0800
+++ mp_engine.cc        2017-02-22 22:28:12.838384441 +0800
@@ -87,7 +87,7 @@
                        m_bValid = true;
                }
        }
-
+    MediaSessionMgr::defaultsSetRtpPortRange(5000,60000);
 }

 MPEngine::~MPEngine()