If you have a phone with a built in answerphone that flashes for messages, this will continue to work on the Hub based home phone.
Separately you can also get a voicemail service that's on the home phone - which is one you need to pick up the phone to see if you have a message. But you don't need to have this if you've got one built into your phone.
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I work for Virgin Media - but all opinions posted here are my own