Fixes #711 in private. We now check RTP ports before allocation, to ensure they're not already in use.

git-svn-id: http://wush.net/svn/range/software/public/openbts/trunk@3225 19bc5d8c-e614-43d4-8b26-e1612bc8e597

SIP/SIPEngine.cpp

@@ -121,6 +121,9 @@ SIPEngine::SIPEngine(const char* proxy, const char* IMSI)
 	mMyTag=tmp;	
 	// set our CSeq in case we need one
 	mCSeq = random()%600;
+
+	//to make sure noise doesn't magically equal a valid RTP port
+	mRTPPort = 0;
 }
 
 

SIP/SIPEngine.h

@@ -151,6 +151,9 @@ public:
 	/** Return the current SIP call state. */
 	SIPState state() const { return mState; }
 
+	/** Return the RTP Port being used. */
+	short RTPPort() const { return mRTPPort; }
+
 	/** Return if the call has successfully finished */
 	bool finished() const { return (mState==Cleared || mState==Canceled); }