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720p SIP Multi-unit Video Door Phone with RFID and PoE
HDP-5240PT
If access code has been input correctly, the device would play siren sound to prompt the HDP-5240PT and
the remote user, while input error by low-frequency short chirp. Password input successfully followed by
high-frequency siren sound, while input falsely, there would be high-frequency short chirp. When the door has
been opened, the device would play siren sound to prompt guests.
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