IT consulting company Accenture and Finnish mobile maker Nokia have closed the agreement for Nokia to outsource Symbian software development and support activities to Accenture.

The agreement was originally announced on 22 June 2011, after Nokia announced that it will outsource its Symbian OS development along with some emplyees to Accenture.

With the closure of the agreemnet, Accenture will provide Symbian-based software development and support services to Nokia until 2016 and also become the preferred supplier for Nokia in its transition to Windows Phone, said Accenture.

Accenture said under the agreement, approximately 2,300 employees from China, Finland, India, the United Kingdom and the United States are transferring from Nokia to Accenture.

Accenture Communications, Media & Technology operating group chief executive Marty Cole said Accenture is focused on growing their business in mobility and embedded software.

"We look forward to supporting Nokia in the execution of its strategy," said Cole.

Accenture said it works with Avanade, a technology service company and focuses on Microsoft technologies, to provide further services to Nokia.