Telephone line switch



  • Hi everyone.

    I'm looking for a way to switch on/off my telephone line. As we have a litte baby we dont like to be desturbed after 8 PM. i thought about a swith in the telephone line. any ideas?


  • Contest Winner

    @stingone I think it could be achieved by a relay. I know from the guy from hackaweek at youTube, that there can be peaks of up to 50V on a telephone line. I don't know the amperage, but you can measure that.



  • @TheoL said:

    @stingone I think it could be achieved by a relay. I know from the guy from hackaweek at youTube, that there can be peaks of up to 50V on a telephone line. I don't know the amperage, but you can measure that.

    Normaly its arround 40V DC between A and B
    When being called 40V DC + 20 AC 25Hz.
    When the line is open it drops to 10V DC

    Amps is arround 30mA

    Dont know what kind of relay to use to achieving this.


  • Mod

    The relay example should work fine I think.


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