Available in three different models; a single call-button version, an 8 call-button version, and then a keypad version which can be used for up to 200 flats/apartments as well as offering the ability to program hundreds of user codes at the same time if required. Each call button can be assigned to three different numbers, to ensure you never miss a visitor - unless you want to, which we're all guilty of sometimes!
In addition to the intercom-based access control, the systems also have a whitelist feature that can be programmed to accept dial-in access. This whitelist feature allows people to call the door station, and if the phone number you're calling from is in the whitelist, the relay will change state, triggering your electric lock (or whatever you've wired up to it) to activate / deactivate, depending on the individual setup. This call would not be a chargeable call either, as the unit only needs to check the caller ID so will end the call without answering. Over 1000 numbers can be programmed into the whitelist; allowing for keyless entry via your phone.
The single-button version is perfect for your home, holiday rental property, small offices, but of course can be used in a huge range of applications, whether you want to control your gates, garage doors, you're only really limited by your own imagination.
The 8-button version is perfect for small blocks of flats and similar buildings of multiple occupancy with no more than 8 individual residencies within the building. Similarly, it can be used on offices, warehouses or other commercial premises where there may be different areas that require their own call buttons such as reception, loading bays, warehouses, and so on. Of course, you can even use this system on a single residence if you wanted to, and have each family member's name tagged to their own button, to avoid disturbing the rest of the family when someone comes to visit you personally.
The keypad version can be programmed to accommodate up to 200 different flats, offices, or business 'zones'. The scope on this system is absolutely incredible and will work for almost any setting. In addition to the large scope of 200 zones, the keypad also works as a standalone access device in itself; you can program up to 384 user codes (that's a grand total of 385 including the maintenance / programming code), so known / trusted visitors and staff can let themselves in using their own access code.
A further beneficial (and highly cost effective) feature of these GSM systems is that no handsets are required, as they are designed to call both landline and mobile telephone numbers which you would pre-program into the unit for each call button (or flat number on the keypad version). In fact, up to three numbers can be programmed per button (or per flat number on the keypad model) so even if you're not able to answer because you're not home for example, it can then move onto a second and third number which may be your office or mobile phone, allowing you to answer from anywhere in the world; just as long as you have signal on your phone!
Another fantastic feature of these GSM systems is the ability to remotely add / delete / reprogram the buttons, telephone numbers and access codes etc. You can do this from absolutely anywhere in the world as long as you have signal enough to send a text message to the system!
The system features two sets of relays (NO/COM/NC) which can not only be triggered momentarily, but can also be put into toggle state (also known as latching or holding the relay) to allow you to open your door etc for however long you like before triggering the relay again to resume its normal state. You can trigger either of these relays from your phone's keypad when answering a call from a visitor; and similarly, when programming in whitelisted numbers for dial-in access, or when creating access codes on the keypad version, the relay number is programmed in at the same time so you can choose which relay should be triggered when programming.
The system is supplied with a UK mains plug-in power supply and all the necessary fittings. All you need to provide is a suitable SIM card.