... .TTS intelligent digital voice alert system 3.can be managed,updated remotely Alarm Monitoring for ... channel, at most 256 channel . Our system can work with worldwide telecommunication operator to do SP ... supplier again and again, however, the supplier can′ t maintain the whole system remotely by computer, the ... managed, maintained or updated remotely 2. It can′ t set up Sub-CMS 3. Unstable performance, ...