Copper cut-off - emergency power supply
When your copper cable landline is removed/disconnected, if there is a power cut, you will be unable to use your landline to make phone calls*. This is because your phone will be connected to your router, and your router requires power to work. 2025 is when the process will be completed, not when it will happen. Many people have already had their landline switched to their router. To overcome the problem, you will need a battery backup. Google your provider for information. If you are BT user, they may supply you with a backup supply.
Having a backup power supply will enable you to use a laptop.
*A mobile phone will overcome this problem (if you can get a signal!), so make sure you keep it charged.
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