Making a SIP or IP call by triggering the input on the doorphone panels
I use anything doorphone unit(Can be R20A,R27A,R28A,R26P .etc) I want to make call when I connected inputs of doorphone unit. How do I this solution? I want to talk about this post.
Scenario: We have a R20A device and there are 2 input at ...
For example;
You have a villa and you don't want to put a doorphone panel in your garden. Just imagine that you have a doorbell at your entrance.
In order to call the staff inside your inside villa, you can call the staff inside when you press the button by just placing a button at the head of your ...
