Features Compatible with 2G, 3G and 4G networks 1 button up to 12 button kits available (surface or flush) Expandable up to 24 call buttons using a combination of additional VR4K series button modules 4 telephone numbers per call button (1 primary and 3 diverts) 1000 dial to open numbers (which can each be assigned to an access level) 32 temporary dial to open numbers (programmable from 1 - 255 hours) 1 programmable call button timeband Up to 10 programmable access control timebands Up to 10 programmable free access timebands Up to 10 programmable access levels Automatic time correction feature including daylight time saving adjustments Programming by SMS, via the Videx smartphone SMS Wizard Apps, the GSMSK PC software or the new "over the air" feature Vandal Resistant 316 grade brushed stainless steel (2.5mm thick) DDA compliant call progress LED's Micro USB connection (for ease of programming) 1 auxiliary input and 1 auxiliary output 1 dry contact relay output (C, NO and NC) and 1 exit button input (push to make, switched 0V input) Micro USB connection (for ease of programming using the GSMSK software) Connection for Wiegand proximity access control (VR4KPPM) Connection for display interface module (VR4KDM) Event log for up to 4000 events
