The former Arsenal, Manchester City and Tottenham striker had been a free agent since leaving Crystal Palace last summer.
The 32-year-old managed just one goal for Palace last season after spending six months at Selhurst Park.
Adebayor had been linked with a move to Turkish champions Besiktas, but some reports state the club wasn’t prepared to meet his demands.
He had wanted an annual salary of £3million (around £58,000-a-week) but Beskitas – currently top of the Turkish Super Lig – were only prepared to pay him £2m.
The Istanbul club finished fourth in the Super Lig last year, their best ever finish, but have traditional been a lower league side.
The Togo striker featured for his country at the African Cup of Nations, but failed to qualify for the knockout stages finishing bottom of Group C.
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