[CentOS] live audio feed via telephone link

yes

i would explore & consider moving the offices too, especially if you can do
what you want with a dedicated conditioned business line from old office to
new office and then send out on a reliable lower cost internet link.

maybe good pots if you have to.

like you said, it all depends on the costs

if it fails, which should be rare, you can always drive to the old office
space and go live there.

yet do explore the dedicated radios from the office to the tower to the
remote end too...

maybe you could make some extra money as a business WISP.

:-)

 - rh