You only need an engineer appointment / visit if you are upgrading to FTTP , you don’t need an engineer for migration to DV you just move the plug on your phone from the socket on the wall to the socket on your newly supplied router , obviously you can only be upgraded to FTTP if it is available, so is FTTP available ?, you can check by entering your address here , if it says WBC FTTP available, it is , if it doesn’t , it isn’t , but if you post the entire results it can be interpreted.
https://www.broadbandchecker.btwholesale.com/#/ADSL/AddressHome
If all you are getting is a migration to DV ( not FTTP ) and you don’t move your phone to the router , if my experience is anything to go by you get reminded by email to do this , if you are getting FTTP and there is a going to be a delay ( excavation is required from the footpath to your house wall for example ) then the initial date is just for Openreach to ascertain what’s required to provide FTTP and put that in place , the checker return will show ( if FTTP is available ) single stage or KCI2 assure , and will also indicate the potential issues , like partial DIG , congested duct , or if overhead line of sight issues , if it says no anticipated issues that normally will be a single stage installation, if it’s KCI2 ( two stage ) there is potentially extra work to do .
