You won’t be able to order an old style PSTN phone service, but even if you could , if no access to the property is available, then that could be an problem, there is no guarantee that the cable pair is still intact from the equipment (in the exchange or the cabinet ) to the existing socket on the wall from the previous service …if its reconnected remotely but doesn’t work what then ? that also assumes FTTP is not available, if its then the existing copper pair is irrelevant the new service has to be installed as FTTP so access would obviously be required.
You can’t order a PSTN phone service , you could order broadband and BTDV ( the IP phone service from BT ) and hope the appropriate ‘connection’ is restored without a visit and all you need to do is fit the router (sent in the post ) and connect a phone to the router , that’s how many services are provided without an actual visit , Openreach only visit the address if the customer calls to say the activation date has passed but there still no service at the socket , the tech then visits to effectively repair the service rather than install from scratch.
It is possible to order a phone service without broadband but it’s not clear how that is achieved , there are two possibilities, one by providing broadband but not charging for it so you still get a ‘router’ to plug a phone into , or you are connected to an ATA in the exchange and use the master socket as you would normally, this has the advantage of not needing any mains powered equipment like the router , but it’s not clear which method people would get as it’s pretty unusual for new customers to only want a phone service
TBH , in the circumstances a mobile service ( you can get phones that look like landline phones but have a SIM in them ) may be a better choice
