from the snom website (link)
The 8 Experience
The snom 820 was a decisive step towards combining state-of-the-art technology with a new design. It was the beginning of a superior line of business VoIP phones. Its extraordinary elegance and performance combined both: latest technology and well-known snom features.
At CeBIT 2010 we took hardware development a step further: Like its big brother, the snom 870, the snom 821 comes equipped with an integrated 1-gigabit switch. And, also like the snom 870, the snom 821 is available in black and in gray.
Visit the snom homepage for more information