After the JOY of all the robocalls these past few months, I’d like to build something that could (on command) hang up on an incoming call on my landline. I don’t really have any experience with telephony, and I haven’t put a multimeter on a phone yet.
I presume that you’d just have to momentarily break or make a connection between two of the leads in the cable to accomplish the hang-up. Landline voltage is 52.1 vDC, so the appropriate relay module would be the first step, but I haven’t seen one that will take that much DC. they usually stop around 24v.
Thoughts anyone?
(The million dollar idea is an Echo connect with call blocker) “Alexa, block caller!”
Thanks. I actually have an Amazon Connect. Unfortunately, when you say “Alexa reject”, all it will do is stop announcing the call on your Echos. What I want to accomplish is to actually be able to momentarily pick up and then hang up on the call.
IMHO, the better answer is to use Google Voice to screen your calls.
We’ve given out our Google Voice number (which you can get for free). GV is set to forward those calls to our landline.
We then additionally configured GV to answer incoming calls, ask the caller for their name, and then it rings our real phone and tells us who is calling. At that point we can hang up, listen in on the caller, send it to voicemail, or let the call through.