code: public void removeAllSessions() {		
  		List<SipSessionKey> sipSessionsToRemove = new ArrayList<SipSessionKey>(); 
  		for (SipSessionKey sipSessionKey : sipSessions.keySet()) {
  			sipSessionsToRemove.add(sipSessionKey);
  		}
  		for (SipSessionKey sipSessionKey : sipSessionsToRemove) {
  			removeSipSession(sipSessionKey);
  		}
  		List<SipApplicationSessionKey> sipApplicationSessionsToRemove = new ArrayList<SipApplicationSessionKey>(); 
  		for (SipApplicationSessionKey sipApplicationSessionKey : sipApplicationSessions.keySet()) {
  			sipApplicationSessionsToRemove.add(sipApplicationSessionKey);
  		}
  		for (SipApplicationSessionKey sipApplicationSessionKey : sipApplicationSessionsToRemove) {
  			removeSipApplicationSession(sipApplicationSessionKey);
  		}				
  	}
docs: Remove the sip sessions and sip application sessions