Is it possible to listen, record incoming / outgoing calls to the home telephone network using an ADSL modem?

Question

ADSL

Hello dear Khabrovites. The question arose long ago, is it possible to wiretap telephone conversations in the home telephone network using an ADSL modem? If not, please share your thoughts on the implementation of this idea.

Connection diagram:

ps modem ZTE ZXV10 W300.

Answer 1

You probably don't know what the splitter does :-) The splitter performs frequency separation of the signal, the low frequency goes to the phone, the high frequency goes to the modem. So even if you really want to, you can't do it.

Answer 2

ADSL modem is not allowed.
You can if you plug an analog modem into your computer and connect it like a phone, and there you can already configure some kind of software.

Answer 3

Above, AxisPod and Richard_Ferlow said everything correctly. At one time, there were even programs that allowed you to use a computer with a modem as a phone. Now such softins are not a problem to find, I think.

Answer 4

As far as I know, the splitter cuts off voice frequencies in both directions to the ADSL modem - therefore it is impossible.
In any case, ADSL does not use voice frequencies and the modem, as unnecessary, may not catch them even when connected without a splitter.
It will be easier to adapt a regular dial-up, at least it works at the same frequencies as the phone. But whether there are developments in this regard - I don’t know, I wasn’t interested.

Answer 5

THANKS TO ALL!