... , PSTN & GSM security alarm with LCD display and keyboard 2,99 wireless and 2 wired 3,Voice prompt function 1, PSTN & GSM, Voice prompt ... whether the ring. 15, audio alarm and silent alarm. 16, telephone remote control function; with any phone or cell phone can ... intelligent home appliance control functions, both local and remote control. 28, can be equipped with wireless sound and light alarm. 29, ...