new bundle install, what to expect?

We're moving to a "new to us" house soon. The house has an On-Q wiring panel in it that contains a number of coax runs that appear to run off to the coax jacks in various rooms. It also has what looks like a patch panel for ethernet and phone lines to each room. The is a 110V outlet in the panel.

We're having a Cox bundle (100M internet, TV, phone) installed. What happens when the installer gets there?

I'm guessing that the modem that's installed splits off the phone, TV and internet into separate feeds for the house? Does, or should, the modem go in or near the wiring panel?

- I believe he's supposed to verify a phone works at each jack in the house. This basically means all runs to the rooms are paralleled with the incoming phone line. That should be easy enough as long as the lines are good.

- We want TV to work at most if not all coax jacks in the house. Does he just put a splitter in the wiring panel?

- We want hardwired internet (not wireless) at several if not all of the jacks in the rooms. We also want wireless for our portable devices. I assume the modem is not a router so a wireless router function is needed as well. How is this done?

Can all of this be done during installation? What, if any, equipment should I provide or have on hand? What am I not even thinking of?