How to connect a city line and my mobile phone?

Question

Layout

Hello.
There is a city line with a very good rate. Nearby is a computer with a very good internet rate.
It would be cool to connect the line to a computer, set up a telephony server and connect to it from a mobile phone (via the Internet) to make calls to landlines, etc.
How and where to dig? :)
* I assume that you need a usb dial-up modem. But software? where to look for it?

Answer 1

And in the MY SKILLS section, you will need to write "I know how to ask questions on the Toaster, I do nothing myself . "
The solution is here for example.
Who adaptively typesets 50% backgrounds (on the left is one picture, on the right is another)?
There is a more complicated example, but I think, with the right consideration of the example, you will understand.
Although there are other ways to solve this problem, perhaps someone will describe them more.
I gave this particular example, as I gave the answer there, and I just remembered it.
Looking for some other solutions on the Toaster or writing your own solution for your task is not an option.
PS: When you try to do something, apply YOUR code that didn't work.
You will be pointed out mistakes and given advice.
And no one will do the layout for you, especially on the Questions and Answers service .
PPS: On a large monitor in your example, there will be a big ass, since the picture will stretch in width and there will be a face for the entire height of the block, and not a full figure of a person%)))
If you really planned to make the picture pressed to the left edge.
Have a good voyage in the open spaces of site building :)
PPPS: In short, I had to draw an example to answer.
https://jsfiddle.net/oz8mgcwp/
But I won't do more)))

Answer 2

Asterisk + VoIP gateway with FXO port. I don’t know a VoIP gateway with 1 FXO, so, for example, Grandstream HT-503 will do.
If there is no desire to mess around and delve into Asterisk, then the free version of 3CX will do (2 simultaneous calls).

Answer 3

Raise the asterisk.

Answer 4

VoIP gateway
https://ru.wikipedia.org/wiki/VoIP-%D1%88%D0%BB%D1...
and + asterisk of course :)

Answer 5

FXO gateway, a telephone line is connected to it, then via sip it can deliver traffic to the installed asterisk on the computer.
Another question is whether the scheme will pay off, because. gateway at least 2-3 thousand rubles. + electricity + your labors...