Door phone or Operator Phone Access
     
 
This feature is optional and available with Security Card attached to it, only. The attached device is sort of Hands-free Speaker Phone which can only be activated by any of the extension, after Lifting the handset and getting dial tone

Dial  #  2   7   and talk to the person at door phone.

The conversation is bi-directional, and the person at the unit should maximum 3 feet away from the unit.

 

 
   
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