Features : * StayD Mode  * Built-in transceiver (433MHz or 868MHz)  * 32 zones (any of which can be wireless)  * 32 users and 32 remote controls (one per user)  * 2 partitions  * 4-wire communication bus (connect up to 15 keypads)  * Supports REM3 hand-held remote keypad  * Supports up to 8 K32RF / K37 wireless keypads  * Supports up to 2 RPTI wireless repeaters  * Supports PCS Series  * Supports IP100 Internet Module  * Supports VDMP3 Plug-in voice dialer  * Supports 16 PGMs (any of which can be wireless)  * Supports iParadox app  * In-field firmware upgrade via 307USB and WinLoad  * Menu-driven programming for the Installer , Master and Maintenance codes  * Multiple telephone numbers for event reporting : 3 monitoring , 5 for personal dialing and 1 for pager  * Patented 2 opto coupler dialer circuit - the most reliable dialer in the industry (US Patents 5751803 , RE39406)  * Calender with Daylight savings Time  * New Sleep Arming method  * Push button power reset  * RF Jamming Supervision  * 9.6k baud communication with WinLoad  * 256 events buffered  * Supports Memory Key (PMCS)  * Fits in a 20 x 25.5 x 7.6cm metal box or in a 28 x 28 x 7.6cm metal box  * EN 50131 grade 2  * EN Certification now available for the MG5050 EN . Please note that Quick Menu Programming is not available in EN version 4.96   * On-board Zones  MG5050 = 5 (10w/ATZ)  * On-board PGMs MG5050 = 4