Aastra Dialog Extra Key Panel Unit - Dark Grey
The Aastra extra key panel is an add on unit designed to attach to the Aastra Dialog range of telephones. Not all the Dialog phones have the capability of attaching an expansion key panel as not all of the models have the slots. Aastra Phone Compatibility The Aastra Dialog phones that are compatible with the extra key panel unit are the: Dialog 4222 - 1 Extra Key Panel Only Dialog 4223 - 1-4 Extra Key Panels Dialog 4224 - 1-4 Extra Key Panels Dialog 4225 - 1-4 Extra Key Panels Dialog 4425 IP - 1-4 Extra Key Panels Dialog 4422 IP - 1 Extra Key Panel The unit comes with 17 programmable extra keys that the user can set to their preference. Also the extra key panels are available in both light and dark grey just like the phones.
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