The last time we saw any news about the switch to IP telephony, the switch was suggested for around 2025, we haven't heard anything since, there would be a lot of work required on the lines to facilitate this, so for now nothing will change on your line, And if and when it happens our customers will be fully informed.
TalkTalk's financial results for the year ending 31 March 2019 were announced on 23 May. Within those results is this: "In FY19 we launched Fibre for Everyone, a cross-group initiative to ensure we are well positioned to benefit from existing and future Fibre demand. In the short term, that means migrating a greater proportion of our base onto Fibre to the Cabinet (FTTC) services and ensuring TalkTalk is a fast adopter of products such as Single Order Generic Ethernet Access (SOGEA) and G.Fast."
Single Order Generic Ethernet Access (SOGEA) is the Openreach broadband product that does not include a voice service.