code: public void endSession() {
  		if (replayWindow != null) {
  			replayWindow.removeAllElements();
  		}
  		replayWindow = null;
  		txEncryptorSuite = rxEncryptorSuite = null;
  		txIV = rxIV = null;
  		txEncOut = rxEncOut = null;
  		txHMAC = rxHMAC = null;
  		txSessEncKey = null;
  		txSessAuthKey = null;
  		txSessSaltKey = null;
  		rxSessEncKey = null;
  		rxSessAuthKey = null;
  		rxSessSaltKey = null;
  		firstRtpSeq = 1;
  		rollOverCounter = 0;
  	}
docs: Ends the currently active session (no effect if no session is started)