Hi,
In game progression i'm just before Non-return point, Phantom Liberty DLC is installed but i didn't receive telephone calls: i slept, waited, explored etc. but nothing happens. I repaired game files just in case but it was useless. Suggestions?

Have you figured out?

If Phantom Liberty is working you will get a call from songbird and than you will see this job in your journal. You don't have to finish the mainquest, but I think you have to finish the prolog before it happens.If you don't get songbirds message something is broken.
Also, when you press start a new game you can select the full game or skip the story and jump to phantom liberty. If you can't select this PL isn't working.

Yes, long time ago i figured out after a long series of tests.

The reason i didn't do it is that i hadn't an answear at the time i need that, even from GOG Support. This for a long time so i though no one was interested by my question.

MY SOLUTION to the problem.

Suggestions from the web

1) Explore the map of Night City until Songbird calls you and triggers the DLC. (This means doing some random police mission) and rest for some day (in Night City)

To me doesn't worked. I passed hours in real life and days to find a solution.

What it worked:

Go and have sex in JoyToy services (you find the spots in map) a minute later i had a Relic crise and the famous Songbird call, and Phantom Liberty finally started.

Sleeping with a joytoy is known to fix or properly activate several game trigger related issues...but I had NO idea that could be the solution to a major game trigger, such as activating the whole Phantom Liberty expansion!

My guess is that if you were at the very end of the base game, there weren't any relevant game triggers left in the game for the expansion pack to hook into and continue. As in, to make the expansion activate itself.

It has been speculated many times earlier that sleeping with a joytoy (during the black screen and loss of player control) is refreshing and verifying the game trigger state, whereas loading or reloading a save game is just reading the game triggers off a checklist, without verifying the trigger state (to save some loading time). And that the joytoy feature was specifically designed this way as an internal troubleshooting method. Personally, I'm inclined to believe that.

But if sleeping with a joytoy was the solution to activating Phantom Liberty...that is another oversight by the game developers.