The Nokia Eseries consists of business-oriented smartphones running Symbian OS, with emphasis on enhanced connectivity and support for corporate e-mail push services, as well as enterprise-styled products and many featuring QWERTY keyboards. All devices have advanced office features through its S60 platform. Phones equipped with Wireless LAN also provide a VoIP client (SIP Protocol). Throughout the series' lifetime its main competitors were BlackBerry products from Research In Motion.[1][2] The Eseries was marketed until 2011.
- ^ November 2008, Gareth Beavis 12 (12 November 2008). "Nokia re-ignites BlackBerry war with E63". TechRadar.
{{cite web}}: CS1 maint: numeric names: authors list (link) - ^ "Nokia ships E61 'BlackBerry beater'". www.theregister.com.