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Wherever open standards are required, the universal SIP phones from the Aastra 675xi range offer everything demanded of modern professional communication. Thanks to XML support, Aastra SIP phones offer almost unlimited potential for individualisation with minimal effort and seamless integration of your own applications and services. Aastra 675xi phones can control external devices and displays or query and display measurement values, for example. Configuration of the Aastra 675xi phones is performed conveniently using a web browser. All settings are backed up there so they are available again immediately should a device be changed. The Aastra 675xi has an integrated switch for direct connection to the desktop PC and can be powered over the network using the Power-over-Ethernet principle.  | Aastra 6751i (51i) – the entry-level model Even the basic version of the Aastra 675xi range offers elegant design, high performance and flexibility. The entry-level model can be wallmounted and is ideal for use in entrance areas or staff common rooms. |  | Aastra 6753i (53i) – the standard model The Aastra 6753i standard business phone offers the same functions as the Aastra 6751i plus extra convenient functions. For example, it features a three-line LC display, six configurable buttons and a headset connection. This makes the Aastra 6753i suitable for any user who needs to keep their hands free, for example in a call centre. The terminal can be easily extended if necessary with extra function keys by combining it with the Aastra M670i key module. |  | Aastra 6755i (55i) – more convenience for more efficiency The convenience model Aastra 6755i features a large, graphicsenabled LC display with backlighting and six dynamic, contextsensitive softkeys. As with the Aastra 6753i, there are another six programmable buttons that can be labelled with paper strips. The number of function keys can be flexibly extended if required by adding up to three Aastra M670i or M675i key modules (combinations are also possible). |  | Aastra 6757i (57i) – premium performance for high demands The premium phone Aastra 6757i has the largest display of the Aastra 675xi range. It goes without saying that it is also backlit and graphics-enabled. The terminal features six dynamic, context-sensitive keys and six individually configurable function keys, all of which can be labelled using the display. Like the Aastra 6755i, it can be extended with a large number of extra function keys by combining it with the Aastra M670i and M675i. |
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