1) Support SIP protocol
2) Support PBX system
3) Phone unlock or by a code
4) One key to open the door
5) Stainless case
Features:
Voice intercom: People in house can talk to the visitor and open door, it's also available trandfering the conversation to another people.
Door bell: A door bell key on the face plate, when visitor press it, the door phone will make a call directly to your phone or the reception.
Door control: Come with a relay to connect to electronic door lock, support remote password to open door.
Directly call to present extension
Web management: Setting up parameters on internet web page.
Waterproof: For the speaker and the doorbell button, also with waterproof rings on shelly.
Hard metal case: Aluminium alloy and stainless steel case materials
Audited Supplier 
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