User Guide

5
R27A/V
Admin Guide
2.3.3. Unlock by RFID Cards (Optional)
Place the predefined user cards in RFID card reader to unlock.
Under normal conditions, R27A will announce “The door is now
opened.” If the card has not been registered, R27A will show
“Unauthorized.” Both 13.56MHz and 125KHz RFID cards are
supported on R27A.
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.”