Nokia Siemens Networks (NSN) has agreed to buy Britain's Apertio for about 140 million euros ($206 million) and expects to close the deal in the first quarter of 2008.
Closely held Apertio, a provider of real-time subscriber data applications for telecom operators, employs 237 staff and had 2007 sales of around 28 million euros ($41 million), the company says.
Apertio will form a new business line within NSN's converged Core business unit, headed by current Apertio CEO Paul Magelli.