
The company, which launched the IPTV service commercially last summer, ended June with 282,000 BT Vision customers.
More than 80% of the new 68,000 customers signed up to one or more subscription packages, referred to by BT as the "subscription attachment rate".
The 80% figure is significant for BT. While customers can sign up to BT Vision without actually taking a monthly subscription, to make the service profitable, BT needs customers to take out regular subscriptions.
The announcement of the figures comes as BT pushes ahead with the development of a targeted advertising platform for BT Vision.
The system aims to deliver personalised ads to consumers, and step up BT's competitiveness against cable and satellite providers.