diff --git a/libs/ysig/sigcall.cpp b/libs/ysig/sigcall.cpp
index 1c1953e7..7b256ccc 100644
--- a/libs/ysig/sigcall.cpp
+++ b/libs/ysig/sigcall.cpp
@@ -786,6 +786,7 @@ AnalogLine::AnalogLine(AnalogLineGroup* grp, unsigned int cic, const NamedList&
     m_acceptPulseDigit(true),
     m_answerOnPolarity(false),
     m_hangupOnPolarity(false),
+    m_polarityControl(false),
     m_callSetup(NoCallSetup),
     m_callSetupTimeout(0),
     m_noRingTimeout(0),
@@ -823,6 +824,7 @@ AnalogLine::AnalogLine(AnalogLineGroup* grp, unsigned int cic, const NamedList&
 	m_echocancel = tmp.toBoolean() ? 1 : -1;
     m_answerOnPolarity = params.getBoolValue("answer-on-polarity",false);
     m_hangupOnPolarity = params.getBoolValue("hangup-on-polarity",false);
+    m_polarityControl = params.getBoolValue("polaritycontrol",false);
 
     m_callSetup = (CallSetupInfo)lookup(params.getValue("callsetup"),s_csName,After);
 
@@ -1090,7 +1092,7 @@ bool AnalogLineGroup::appendLine(AnalogLine* line, bool destructOnFail)
     }
     Lock lock(this);
     m_lines.append(line);
-    Debug(this,DebugAll,"Added line (%p) %s [%p]",line,line->address(),this);
+    DDebug(this,DebugAll,"Added line (%p) %s [%p]",line,line->address(),this);
     return true;
 }
 
@@ -1112,7 +1114,7 @@ void AnalogLineGroup::removeLine(AnalogLine* line)
 	return;
     Lock lock(this);
     if (m_lines.remove(line,false))
-	Debug(this,DebugAll,"Removed line %p %s [%p]",line,line->address(),this);
+	DDebug(this,DebugAll,"Removed line %p %s [%p]",line,line->address(),this);
 }
 
 // Find a line by its circuit
diff --git a/libs/ysig/yatesig.h b/libs/ysig/yatesig.h
index da6de41e..30e951aa 100644
--- a/libs/ysig/yatesig.h
+++ b/libs/ysig/yatesig.h
@@ -2122,6 +2122,13 @@ public:
     inline bool hangupOnPolarity() const
 	{ return m_hangupOnPolarity; }
 
+    /**
+     * Check if the line polarity change should be used
+     * @return True if the line polarity change should be used
+     */
+    inline bool polarityControl() const
+	{ return m_polarityControl; }
+
     /**
      * Check if the line is processing (send/receive) the setup info (such as caller id) and when it does it
      * @return Call setup info processing as enumeration
@@ -2317,6 +2324,7 @@ private:
     bool m_acceptPulseDigit;                   // Accept incoming pulse digits
     bool m_answerOnPolarity;                   // Answer on line polarity change
     bool m_hangupOnPolarity;                   // Hangup on line polarity change
+    bool m_polarityControl;                    // Set line polarity flag
     CallSetupInfo m_callSetup;                 // Call setup management
     u_int64_t m_callSetupTimeout;              // FXO: timeout period for received call setup data before first ring
     u_int64_t m_noRingTimeout;                 // FXO: timeout period with no ring received on incoming calls