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M3900 Key-based Add-on Module The Nortel M3900 Key-based Add-on Module is a fully dedicated unit that is attached to an M3900 series phone. This module is built to supply compatible phones with an additional 22 programmable buttons with busy lamp field indicators. Features Adds 22 additional line/feature keys to phone Fully programmable Busy lamp field indicators Maximum of two add-ons are supported per phone Compatibility For use with the M3904 and M3905 phones Part Number: NTMN37BA70 Compatible Part Numbers: NTMN665070
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🇺🇸 Ship from USA · On Agora since 2025
$24.88