Nokia Siemens Networks (NSN) has inked a deal with Oman Mobile to upgrade 90% of the cellco’s network. The contract, worth between USD80 million and USD100 million, will see 90% of the company’s base stations and core connectivity replaced, and take 18 months to complete. According to TeleGeography’s GlobalComms databae Oman Mobile had 1.48 million subscribers at the end of 2007, equivalent to a 59.7% market share. In 2008 it hopes to add an average 100,000 subscribers per month.