We expect downtime to be minimal, and typically does not last longer than 20 minutes.
We will arrange with you a suitable date for the change to happen. It's just a simple switchover that takes place at the exchange. Given the nature of the work this is normally completed during the early morning, but it can take place any time during your chosen day. It's important to consider this impact this may have on the day so please ensure that this is considered when you receive the appointment date.
Occasionally additional testing may be required which can take up to two hours, Openreach may send an engineer to change the face plate on your PSTN NTE (the small white box on the wall where the phone line is) depending on how old it is to get you digital ready. It’s important you know where this is in your building and that someone can show this to the engineer on the day. Again, its important to consider this impact it may have on the day so please ensure that this is considered when you receive the appointment date.