... .4 wired guard areas and 6 wireless guard areas,6 voice phones and 3 message phones2.Remote two-way intercom,3 ... ISD automatic message recording,4.Built-in artificial intelligent digital voice announcer,Built-in artificial intelligent english message5. Mobile phone (telephone ... add the wireless sensors as your want,Can set the voice remind for remote arm/disarm9.Built-in NI-HI rechargeable ...