ExTel Audio Door Unit
Extension Door Bell
Suitable with any PABX system and electric lock
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Feature
- Connected as a PABX extension.
- Flexible Ext. / Group to ring when pressing the button.
- Programmable door open relay time
- AC 12V outlet to open door.
- Follow me option - the door call can redirected to any telephone number.
- Day / Night mode - configure which ext. will ring at the day / night hours.
- Electronic ringing on panel, while telephones at home are ringing.
- Additional button to open the door from inside the office
