TalkTalk Business has again proved itself to be a key contributor to the wider Group's revenues, reporting a 30.8% increase in data revenue in its preliminary financial results for the 12 months to 31st March 2017.
Across the year, revenue growth accelerated in H2 to +6.1%, up from +2.3% in H1.
The number of new Ethernet and EFM lines increased by 8,000 during the year.
Overall revenues grew by over 4% year-on-year.
TalkTalk Business has ambitions to double its size over the medium term driven by growth in high bandwidth data products and next generation voice services ahead of the 2025 ISDN switch-off.
The company recently announced its intention to take advantage of the opening up of the Ethernet market with the introduction of Dark Fibre access later this year.
While legacy voice revenues declined by 17.9% there was a strong take-up of TalkTalk Business's new next generation IP voice product, with revenue growth during the year of 20%.
The launch of new IP Voice products followed TalkTalk Business' acquisition of tIPicall in April 2015.
116 Partners have now signed up to sell this new service and the total base of SIP channels on the platform, including acquired base, increased by 7,340 channels (+65%) during the year.
The acquisition has continued our diversification into next generation telephony services, further demonstrated by our hosted telephony platform which saw the user base grow by 43%.
Kristine Olson-Chapman, MD at TalkTalk Business, stated: "TalkTalk Business continues to be one of the highest growth parts of the TalkTalk Group.
"Even more encouraging is the increase in demand for next generation voice and data services."