code: public String listSipApplicationSessionIds() {
      	StringBuffer sb=new StringBuffer();
          Iterator<MobicentsSipApplicationSession> sipApplicationSessions = sipManagerDelegate.getAllSipApplicationSessions();
          while (sipApplicationSessions.hasNext()) {
              sb.append(sipApplicationSessions.next().getKey()).append(" ");
          }
          return sb.toString();
      }
docs: For debugging: return a list of all session ids currently active