What are the new cables on poles for?

My area has had FTTP for a couple of years, delivered via CBT (?) on the top of telephone poles. Over the last few weeks two large spools of cable have appeared attached to many of the telephone poles. What are these for? Are they just adding additional capacity or is it for something else?

EDIT: Add pic:
https://imgur.com/a/aT1BduO

Edited by andysm (Sat 04-Jan-25 11:04:43)

In reply to a post by andysm:

Are they just adding additional capacity or is it for something else?

Its most likely an alternative broadband provider with their own infrastructure coming to your street.

You can check to see if any particular Alnets are building in your area using bidb