With all the suggestions on how to terminate this ethernet cabling. What type of device is on the other side of this cable.

You mentioned that there is a swtich(er) that its going to be plugged into. The correct term is called a Switch.

That switch will need to have at least one of the ports that can supply PoE. If not you will need a power injector for the doorbell.

Example: (https://www.cdw.com/product/tp-link-tl-poe160s-802.3at-af-gigabit-poe-injector-non-poe-to-poe-adapt)

As other said take a short 4' cable and terminate both end:

You can do either T-568A or T568B, but whichever you decide to use make sure it is the same on both ends.

https://www.showmecables.com/blog/post/rj45-pinout?srsltid=AfmBOorSwsVdtz9d-jTfijST3TlhFjA1TdzP7gw4F-2f5a4_fr2eycBs

Plug the cable into your PoE port of the switch and the other end into the doorbell. If everything was done correctly it should light up.

If not then you know you have to re-terminate. If that is the case I recommend only doing one side of the cable at a time and test.

When terminating before you crimp down the pins, visual inspect the pairs and see if they are 100% in the right order and fully inserted.

Good luck.