Will my existing phone work with a digital line?

In most cases, yes — you plug your current phone into the adapter we lend you. If yours does not work with it, we will talk you through the options.

Applies to: Digital phone (VoIP)

Last reviewed 31 Oct 2026

How it usually works

Many corded and cordless phones work with a digital line by plugging into the phone adapter we lend you (the adapter is lent, not sold). You keep using a familiar handset on your new digital number.

If your phone does not work

If your handset does not work with the adapter, tell us. We will advise on alternatives. You can also use our VoIP app on a compatible smartphone .

Keeping your number

In most cases you can keep your existing number. Porting is free. Our staff arrange it by hand, and it usually takes a few working days. It is not instant or automatic. Read Can I keep my phone number?.