The 55i from Aastra offers powerful features and flexibility in a standards based, carrier-grade expandable business IP telephone. With a sleek and elegant design, 144 x 75 pixel backlit LCD display and 6 dynamic context-sensitive softkeys, the 55i is fully interoperable with leading IP-Telephony platforms, offering advanced XML capability to access custom applications and support for up to 9 calls simultaneously. Part of the Aastra family of IP telephones, the 55i is ideally suited for all Business Telephone requirements and users who require more one-touch feature keys and XML based programs.