Osborne Clarke has taken a role alongside a number of US firms on Motorola's $975m (£600m) sale of assets to Nokia Siemens Networks (NSN).

The deal, which was announced in July 2010 and completed on 30 April 2011, sees NSN take responsibility for supporting 50 of the mobile phone giant's network operators across 52 countries, as well as approximately 6,900 employees.

Osborne Clarke advised Motorola on the UK aspects of the sale of its wireless network infrastructures, with a team consisting of corporate partner David Ferris and employment partner Paul Killen.

International legal aspects of the deal were handled by Baker & McKenzie, with a team led by Palo Alto corporate and M&A partner Matthew Gemello advising Motorola.

Winston & Strawn advised Motorola on the US side of the deal, while Paul Weiss Rifkind Wharton & Garrison acted on the sale of its networks business in China and Hong Kong.

NSN, the second-largest wireless infrastructure and services provider in the world, was advised by Skadden Arps Slate Meagher & Flom.

The addition of Motorola's assets makes NSN the third largest wireless infrastructure vendor in the US and the leading non-Japanese wireless vendor in Japan.