User Guide

5
R20K
Admin Guide
2.3.3. Unlock by RFID Cards
Place the predefined user cards in RFID card reader to unlock.
Under normal conditions, R20K will announce “The door is now
opened.” If the card has not been registered, R20K will show
“Unauthorized.” Both 13.56MHz and 125KHz RFID cards are
supported on R20K.
2.3.4. Unlock by DTMF Codes
Users can press the predefined DTMF code from an answer unit to
remotely unlock the door during the call. Users will also hear “The
door is now opened.”