HID Card Does NOT Beep When Swiped

Quick question here regarding Access Control: Is the "beep" from the HID reader when you swipe a blank card, the only way to know if a card is incompatible ?? As far as I know, if you swipe an old 125 KHz card unto a newest 13.56 Mhz reader (or vice-versa) and it does NOT beep: it means you are trying to use an older format card in an incompatible reader.

Background...

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