What is better, a telephone entry system, intercom or keypad?
The telephone entry system (TES) • Question: Why? Answer: The telephone entry system rings all the phones on the line it is hooked up to. You don’t have to run to the intercom station to answer. If you need multiple intercoms the cost will soon exceed the TES. A keypad will not help UPS or anyone else who might be dropping by unless they have the code and once they have it, you have to reset it or give up security. A good TES will have time zones for different codes. If you have a worker come by on a regular basis during the day, you can give them a code only for those hours he should be there. You can also have the TES calls forwarded so no one has to know you are not home when they ring the call button.
