Complex sentence: In early 2007 Nokia released the 24ct gold plated version of the 8800 Sirocco, which became and still stands as the most expensive phone (RRP $2049.00) in Nokia's catalogue of cell phone models.
Split into simpler sentences: In early 2007 Nokia released the 24ct gold plated version of the 8800 Sirocco. Which became and still stands as the most expensive phone (RRP $2049.00) in Nokia's catalogue of cell phone models.