BT shareholders have overwhelmingly backed the telco's plan to demerge its wireless unit, recently renamed O2.
Despite lobbying from unions and staff opposed to the spin-off, totals of proxy votes indicate that the matter is all but decided, with voting rights to 4.3 billion shares cast in favour of the split, with only 670 million against.
Final vote totals are expected to be calculated later today or overnight.
Voting rights to some 8 billon shares were eligible to vote on the resolution, but it is thought the final number of votes cast will be significantly lower, given a reported low turnout at the firm's emergency general meeting in Birmingham this afternoon.
Addressing shareholders, Sir Peter Bonfield, BT's chief executive, said: "Given the different investment requirements of the fixed and mobile sectors, we believe that each company's separate and more focused investment story will be more attractive to investors."
Bonfield also took the chance to denounce "unjustified" criticism of BT's role in creating broadband Britain.
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