[sajal83]

I have a redundant 2 ISP setup, and use multipath TCP to use both of them at the same time.

A very outdated post about my setup : https://www.sajalkayan.com/post/fun-with-mptcp.html

I now have 2 broadband ISPs, and optionally I can hook in my phone's 4g into the mix.

Multipath TCP allows me to "mix" bandwidth of both ISPs at the same time.