Telefon digital Ericsson Dialog 4223 Professional The Dialog 4223 Professional is a great value digital phone that has been designed for use exclusively with an Aastra system: This model is recommended for replacing existing phones, or as an additional terminal for an existing system. With ergonomic design, low energy consumption and acoustic protection, Aastra Dialog phones will work with most Ericsson systems, and can be updated via software, which means the phones themselves do not need updating so often. This phone is compatible with the following Ericsson systems: MX-ONE, MD-110 BC12 and previous versions (MD-110 BC7 BC11). The Ericsson Dialog 4223 Professional is a business orientated digital telephone with a wide range of advanced functions, such as a three-row adjustable graphical display, 13 keys with LEDs, 7 programmable keys and 4 softkeys. With a built in headset port, and full duplex hands-free function with acoustic echo cancellation, this is an ideal phone for office environments. 4 programmable function keys ensure easy menu navigation and fast access to specific functions such as voice mail, phone book, conference function. Hands free communications are easy with a dedicated key for switching between the headset and the handset, as well as full duplex and Acoustic Echo Cancelling, making this an ideal phone for meetings. Features: Hands free Headset port Graphical screen Phone book 10 function keys with LED 7 programmable keys 4 s