Mobile operator Orange France says it has sold more than a quarter of a million dual-mode Unik GSM/Wi-Fi mobile phones since launching them commercially in November 2006. The dual-mode handsets are seen as a key product in the operator’s plan to become an integrated fixed and mobile operator. ‘This is part of our strategy to retain customers,’ said Orange Mobile CEO Jean-Noel Tronc at a press briefing Friday. The operator is currently selling around 2,000 Unik phones a day, compared with 200 at launch, and has seen a strong uptake since March 2007. The cellco is working hard to win new subscribers and retain existing ones in the face of stiff competition from the likes of software-based telephony providers such as Skype. The Orange Unik phone switches seamlessly to a Wi-Fi network when in range of a wireless LAN hotspot, allowing the user to benefit from unlimited calls to a landline for an additional EUR10 per month – or EUR12 a month if calls to Orange mobiles are also included.