Yes that is FTTP infrastructure,
Traditional PSTN telephones are being retired, so irrespective of having FTTP , the phone network is changing to an IP ( Internet Protocol ) service , even those customers currently not on FTTP will change , for the majority this will mean the broadband router will also be used for telephony ( the phone plugs into the router )
There is currently no automatic change to FTTP once it’s available , so just because FTTP becomes available unless you make a change ( ask to be on FTTP , change products or recontract ) you will stay on whatever you are on , but if you have telephony and BT broadband currently , you will at some point have to plug your phone into the router to keep telephony working .