DTMF Whitelist Application

In order to securely control the door access via DTMF code(s), you can set up the DTMF whitelist so that only the caller's SIP extensions saved in the door phone can use the DTMF code(s) to gain door access.

If you are not able to open the door via DTMF code, the following are the possible causes:

1. DTMF whitelist is enabled, but the SIP extension of the caller is not in the DTMF whitelist of door phone;
2. DTMF type of the caller is different from the door phone.

Preparation

Supported models

VDP-AK-28RA / VDP-AK-29RC / VDP-AK-916XS

Note

1. DTMF whitelist only applies to the DTMF unlock function, for the other door access methods, there is no limitation;
2. DTMF whitelist contains Access Whitelist, PhoneBook, Dial Plan, Speed dial.

Configuration

1. Click Intercom - Relay - DTMF;
2. Turn on or turn off the DTMF whitelist function according to your need;
3. Click Submit tab for the validation and Cancel tab for the Cancellation.

If you select “Enable“, only the caller number that is saved in the door phone can open the door via DTMF code(s).

If you select “Disable“, any numbers in and out of the whitelist are valid for DTMF code door access.