The extension key module provides
additional 36 softkeys (function and destination keys) and is compatible with Aastra 6773, Aastra 6773ip and Aastra
6775 and 6775ip. Three key extensions with 36 keys each can be connected in total.
Phone Extensions
AASTRA Μ 671
Description
36 freely configurable keys with LED
Adjustable to four different heights with an angle stand
suitable for wall mounting
Power supply required, power supply unit or Power-over-Ethernet
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