Sources have told Campaign that Karmarama has been appointed the official agency for BT's end-to-end digital process. This includes strategy and planning, user experience, design development, hosting as well as integration and development of the brand-wide strategy.
They will work with Wunderman which was selected last October to handle BT's digital strategy.
Karmarama declined to comment.
BT confirmed it has selected a third agency for project-based development, but declined to confirm the details as discussions are still underway.
SapientRazorfish, which has previously been on BT's digital agency roster, said that they declined to pitch.
This follows BT's appointment of Essence to handle its £160m media account.