diff --git a/src/Network/fgcom.cxx b/src/Network/fgcom.cxx
index a8ceb05..65a8a29 100644
--- a/src/Network/fgcom.cxx
+++ b/src/Network/fgcom.cxx
@@ -226,10 +226,8 @@ void FGCom::init()
   _maxRange         = MAX_RANGE;
   _minRange         = MIN_RANGE;
 
-  SG_LOG(SG_IO, SG_ALERT, "FGCom: ---------------------------------------");
+  SG_LOG(SG_SOUND, SG_DEBUG, "FGCom: init");
         
-
-
 }
 
 
@@ -237,7 +235,7 @@ void FGCom::init()
 void FGCom::postinit()
 {
 
-    SG_LOG(SG_IO, SG_ALERT, "FGCom: 1111111111111111111111111111111111111");
+    SG_LOG(SG_SOUND, SG_DEBUG, "FGCom: postinit()   11111111111111111111111111");
 
     if( !_enabled ) {
         return;
@@ -245,7 +243,7 @@ void FGCom::postinit()
     
     //WARNING: this _must_ be executed after sound system is totally initialized !
     if( iaxc_initialize(4) ) {
-        SG_LOG(SG_IO, SG_ALERT, "FGCom: cannot initialize iaxclient");
+        SG_LOG(SG_SOUND, SG_DEBUG, "FGCom: cannot initialize iaxclient");
         _enabled = false;
         return;
     }
@@ -291,7 +289,7 @@ void FGCom::postinit()
                               const_cast<char*>(_password.c_str()),
                               const_cast<char*>(_server.c_str()) );
         if( _regId == -1 ) {
-            SG_LOG(SG_SOUND, SG_ALERT, "FGCom: cannot register iaxclient");
+            SG_LOG(SG_SOUND, SG_DEBUG, "FGCom: cannot register iaxclient");
             return;
         }
     }
@@ -385,13 +383,13 @@ double FGCom::getCurrentCommVolume() const {
 
     if (_speakerLevel_node)
         rv = _speakerLevel_node->getFloatValue();
-        SG_LOG(SG_SOUND, SG_INFO, "FGCom: _speakerLevel_node " << _speakerLevel_node->getFloatValue());
+        SG_LOG(SG_SOUND, SG_DEBUG, "FGCom: _speakerLevel_node " << _speakerLevel_node->getFloatValue());
 
     if (_commVolumeNode)
 
         //暂时关闭 _commVolumeNode
         //rv = rv * _commVolumeNode->getFloatValue();
-        SG_LOG(SG_SOUND, SG_INFO, "FGCom: _commVolumeNode " << _commVolumeNode->getFloatValue());
+        SG_LOG(SG_SOUND, SG_DEBUG, "FGCom: _commVolumeNode " << _commVolumeNode->getFloatValue());
 
     return rv;
 }
@@ -401,7 +399,7 @@ double FGCom::getCurrentFrequencyKhz() const {
 
 void FGCom::setupCommFrequency(int channel) {
 
-    SG_LOG(SG_SOUND, SG_INFO, "setupCommFrequency1 channel=" << channel);
+    SG_LOG(SG_SOUND, SG_DEBUG, "setupCommFrequency1 channel=" << channel);
 
     if (channel < 1) {
         if (_selected_comm_node != nullptr) {
@@ -409,13 +407,13 @@ void FGCom::setupCommFrequency(int channel) {
         }
     }
 
-    SG_LOG(SG_SOUND, SG_INFO, "setupCommFrequency2 channel=" << channel);
+    SG_LOG(SG_SOUND, SG_DEBUG, "setupCommFrequency2 channel=" << channel);
 
     // disconnect if channel set to 0
     if (channel < 1) {
         if (_currentCallIdent != -1) {
             iaxc_dump_call_number(_currentCallIdent);
-            SG_LOG(SG_SOUND, SG_INFO, "FGCom: disconnect as channel 0 " << _currentCallIdent);
+            SG_LOG(SG_SOUND, SG_DEBUG, "FGCom: disconnect as channel 0 " << _currentCallIdent);
             _currentCallIdent = -1;
         }
         _currentCommFrequency = 0.0;
@@ -447,15 +445,15 @@ void FGCom::setupCommFrequency(int channel) {
                 }
             }
         }
-        SG_LOG(SG_SOUND, SG_INFO, "FGCom: setupCommFrequency node listener failed: channel " << channel);
+        SG_LOG(SG_SOUND, SG_DEBUG, "FGCom: setupCommFrequency node listener failed: channel " << channel);
     }
 
-    SG_LOG(SG_SOUND, SG_INFO, "setupCommFrequency3 _commFrequencyNode=" << _commFrequencyNode);
+    SG_LOG(SG_SOUND, SG_DEBUG, "setupCommFrequency3 _commFrequencyNode=" << _commFrequencyNode);
 
     if (_commFrequencyNode)
         _commFrequencyNode->removeChangeListener(this);
 
-    SG_LOG(SG_SOUND, SG_INFO, "FGCom: setupCommFrequency invalid channel " << channel);
+    SG_LOG(SG_SOUND, SG_DEBUG, "FGCom: setupCommFrequency invalid channel " << channel);
 
     _currentCommFrequency = 0.0;
 }
@@ -479,7 +477,7 @@ void FGCom::connectToCommFrequency() {
         if (_currentCallIdent != -1) {
 
             iaxc_dump_call_number(_currentCallIdent);
-            SG_LOG(SG_SOUND, SG_INFO, "FGCom: disconnect as freq 0: current call " << _currentCallIdent);
+            SG_LOG(SG_SOUND, SG_DEBUG, "FGCom: disconnect as freq 0: current call " << _currentCallIdent);
             _currentCallIdent = -1;
         }        
         return;
@@ -489,7 +487,7 @@ void FGCom::connectToCommFrequency() {
 
         if (_currentCallIdent != -1) {
             iaxc_dump_call_number(_currentCallIdent);
-            SG_LOG(SG_SOUND, SG_INFO, "FGCom: dump_call_number " << _currentCallIdent);
+            SG_LOG(SG_SOUND, SG_DEBUG, "FGCom: dump_call_number " << _currentCallIdent);
             _currentCallIdent = -1;
         }
 
@@ -510,12 +508,12 @@ void FGCom::connectToCommFrequency() {
                 return;
             }
 
-            SG_LOG(SG_SOUND, SG_INFO, "FGCom: connectToCommFrequency num=" << num);
+            SG_LOG(SG_SOUND, SG_DEBUG, "FGCom: connectToCommFrequency num=" << num);
 
             if (!num.empty()) {
                 _currentCallIdent = iaxc_call(num.c_str());
 
-                SG_LOG(SG_SOUND, SG_INFO, "FGCom: iaxc_call(" << num << ") _currentCallIdent=" << _currentCallIdent);
+                SG_LOG(SG_SOUND, SG_DEBUG, "FGCom: iaxc_call(" << num << ") _currentCallIdent=" << _currentCallIdent);
 
                 if (_currentCallIdent == -1)
                     SG_LOG(SG_SOUND, SG_DEBUG, "FGCom: cannot call " << num.c_str());
@@ -532,6 +530,9 @@ void FGCom::connectToCommFrequency() {
 
 void FGCom::updateCall()
 {
+
+    SG_LOG(SG_SOUND,SG_DEBUG,"updateCall()");
+    
     if (_processingTimer.elapsedMSec() > IAX_DELAY) {
 
         _processingTimer.stamp();