New Internet Provider, ISP hardware

Hi all,

At my work, we asked for a new circuit with more bandwidth and to get it from our broker we had to switch provider (from Verizon to a new one).

The new circuit has been installed so we need to connect our router to the new circuit.

I have a basic understanding of networking but not so much with ISP hardware. I have a few pictures of what Verizon put in place in the past and I am trying to reverse engineer it just to learn a bit about how ISP stuff is connected together:

1. There is an Overture demarc: https://i.imgur.com/QvxZ7LN.jpg
2. There is a device that looks like a Cisco router: https://i.imgur.com/b9Ri7J5.jpg (looks like my EPC 3925 at home) I am reading it is used for Ethernet Virtual Connection for point-to-point to the ISP
3. And then there are 2 blue devices (no clue what they are and the only pic I have is not great): https://i.imgur.com/fNcdrbl.jpg

On our side we have a Cisco Router 1941 that is set up as a spoke in a DMVPN network

Could you please help me figure out what the ISP hardware is, how it connects together and just confirm what usually ISPs put in place?

I would have thought our router would connect directly to the Aperture (demarc is supposed to be the last piece of equipment at the ISP side but it doesn't seem to be the case, at least that's what they show here: https://enterprise.verizon.com/support/customerreadiness/equipment/

I will get local hands help but to be sure I am talking rubbish when contacting them, I would like to understand what I need to connect my DMVPN router to on the new circuit.