Just curious do many customers wire in an external bell from the indoor monitor to give them extra audio in a loud enviroment.
If so just wondering how you set your one up?
And is this a popular thing to have done also?
In some Asia countries, it is very popular. because the indoor monitor sound maybe not be enough for some residents, they will need an external bell with a relay terminal. when there is an incoming call, the bell will ring a louder sound. They will also install an extra light with the door phone as an alarm reminder so that the administrator can know where the problem happened in the first place when an accident occurs
