O2 be a fly on the wall during BT and Vodafone's video calls: Telefónica's UK biz, Virgin Media officially merge
Multinationals' UK arms pair up to take on Voda and former state-owned telco
Telcos Telefónica and Liberty Global today confirmed plans to join their O2 UK and Virgin Media subsidiaries into one combined entity in a deal analysts branded a "blockbuster merger".…