Question/Help - Distributing Ooma to All Telephone Jacks

[dklawik]

Hello, I read various instructions on line and watched some youtube videos on disconnecting the landline from the box on the outside of my house so I can connect Ooma to my existing phone jacks throughout my house.

however, the wires/box on the outside of my house doesn't look like the examples I saw online.

I had a uverse digital phoneline from AT&T before I setup Ooma and ported my number. I cancelled my AT&T digital phoneline.

Anyone out there can guide me to verify if my landline is in fact disconnected???

See pictures of my outside box attached.

any help would be much appreciated. thanks.