[8] Nokia Siemens Networks then began full operations on 1 April 2007[9] and has its headquarters in Espoo, Greater Helsinki, Finland.

With this acquisition Nokia Siemens Networks gained customers in the subscriber management area including Orange, T-Mobile, O2, Vodafone, and Hutchison 3G.

On 23 November 2011, Nokia Siemens Networks announced that it would refocus its business on mobile broadband equipment, the fastest-growing segment of the market.

[17][18] On 12 December 2011, ADTRAN, Inc. announced it would acquire Nokia Siemens Networks fixed line Broadband Access business.

[19][20][21] After the restructuring process, Nokia Siemens Networks brought in a positive turn around to its businesses.

The acquisition aimed to create a stronger competitor to the rival firms Ericsson and Huawei, whom Nokia and Alcatel-Lucent had surpassed in terms of total combined revenue in 2014.