CYFRAL Smart 5P intercom - connection in place of the old IKA (4-wire)

Good morning,
I am going to replace the old IKA intercom with a new one from the CYFRAL Smart 5P company.

Currently, the old intercom is connected with 4 cables in the following diagram:


The new intercom looks like this:


Please help me how to switch the cables from the old intercom to the new one, because I do not know the meaning of all the icons under the solder pads in the old intercom. Additionally, in the old intercom, there is a bridge between the middle socket and the first on the right (green cable).

Thank you in advance for any help.

In the old one, symbols mean from left to right:

o calling (bell) - you give in the new RING - red cable
o handset (loudspeaker) - you give in the new SPK - green cable
o microphone - you give a new one to the MIC - white cable
o mass - you give in the new one on MASS - blue cable
o lock - you leave it free
o lock - you leave it free

You have a 4-wire installation with opening on the microphone line. In the new one, the manufacturer has prepared jumpers that will replace this green wire in your old one. Follow the instructions for that option.

Thank you very much for your help. Everything works.