On 17 November 2001 , BT Group became part of mmO following the demerger of BT Wireless 's operations from Manx Telecom . It was acquired by Telefónica in .
On 17 November 2001 , Manx Telecom became part of mmO following the demerger of BT Wireless 's operations from BT Group . It was acquired by Telefónica in .