RJ-25===RJ-45 - Pinout?

Question

Computer networks

Such things .. you need to connect the IP phone to the network. Free sockets for RJ-45 are occupied, there are only telephone ones. Rj-11 connectors are not available, there are only RJ-25 (RJ-12), and the matter is urgent.
Tell me the pinout scheme, in case there is an RJ-45 cable on one side and an RJ-25 cable on the other. The whole Internet is clambered, all to no purpose.

Answer 1

Come on. Is that the whole internet?
The first link led to the difference in the connectors.
It's just that two more contacts were added to the RJ-25, along the edges. And the rest is the same Rj-11.
Next, what contacts do you have on your phone? Or will you insert RJ-25 into it?
Here's a cheat sheet for you , how to wire a network into 4 wires.

Answer 2

an ordinary body uses blue and white-blue wire, central wires) well, add if you need pairs of white-green, blue, white-blue, green