00 advance – Siemens optiPoint family User Manual
Page 31
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optiPoint 500 advance.
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19 function keys with light-emitting diodes
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Full duplex hands-free operation with echo
suppression to suit the surrounding area
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Integral USB 1.1 interface
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2 adapter sockets
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1 connection for two-way unit (121 TR9-5)
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1 interface for up to 2 auxiliary devices:
• optiPoint key module
• optiPoint signature module
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Alphanumerical LCD display, tilting,
with two lines of 24 characters.
Additional back-lighting
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3 dialog keys for interactive user guidance:
Yes, Return and Continue
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2 adjusting keys (plus, minus) for idle tone
volume, idle tone quality, hands-free quality,
call waiting tone and display contrast
(depending on system)
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Suitable for wall mounting
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Colors: arctic, mangan
00 advance.
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