Nortel M3900 Key-Based 22 Button Expansion Module w/Out Stand (NTMN37BA70) Refurbished


Condition:  Refurbished

Nortel M3900 Key-Based 22-Button Expansion Module without Footstand - Charcoal (NTMN37)



The Nortel Networks M3900 Expansion Module is a key- based expansion module providing 22 additional line/feature keys. The M3904 and M3905 each support up to two expansion modules, for a total of 44 additional keys.



  • Fully programmable
  • Each button shows status of other PBX extensions
  • LED indicator for line status
  • Maximum of up to two key-based expansion modules to your digital M1 phone
  • Ideal for busy receptionists, administrators, and managers
  • For use with Nortel M1 Option 11C PBX System

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