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I currently have FTTH with new VF router which has POTS ports. When I started the service I did not ask for VOIP. I am thinking of asking for enabling VOIP as a second line, NOT porting my existing BT line. Be interested in any user experience with the VOIP service in Milton Keynes.
You can obtain a VOIP service from the likes of Voipfone, Sipgate, AA. The Gigaset DECT base station and Gigaset phones is a possibility. The base station can connect to both your phone line and by ethernet to your router.
i got a new 01908 number when I had my VF gigafast installed. All worked fine from the off. But I've now removed the VF router and installed a 3rd party Draytek in its place. However, this doesn't have POTS ports and been told by VF support that I can no longer use my new 01908 service. I'm looking at porting it to Voipfone.co.uk after a tip from an MKBAGer.