The Competition Bureau said Wednesday that Bell Aliant Inc. has responded to the bureau's concerns surrounding its purchase of an Ontario-government-owned telecommunications provider. The bureau said in a press release Bell Aliant has agreed to lease a "significant portion" of Ontera's fibre network in northern Ontario to Eastlink. The bureau said it was concerned the proposed acquisition of Ontera by Bell Aliant would "substantially lessen and\/or prevent competition in the sale of wireline telecommunications services in up to 16 northern Ontario communities ... " It added that upon expressing its concern, Bell Aliant "worked cooperatively and constructively to address those concerns" by striking a deal to provide Eastlink with access to the Ontera network for 20 years. In a separate decision Wednesday, Industry Canada approved the transfer of five wireless spectrum licences to Bell Aliant from Ontera. Bell Aliant is in the process of being fully bought out by BCE Inc., which is already its controlling shareholder. The sale is expected to be completed this month.