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Aastra 536M/M670i 36 Key Expansion Module New

Item #: a1736-0000-1055

The Aastra M670i Expansion Module (a1736-0000-1055) has 36 programmable keys and gives receptionists, administrative assistants, call center agents and power users the ability to monitor and manager large volumes of calls.


  • Formerly known as the Aastra 536M*
  • SIP Expansion Module
  • Scale-able to 3 per Phone
  • Powered Direct from Phone
  • No External Power Adapter Required
  • Programmable Features
  • 36 Keys with LED
  • Supported on 55i, 57i, 57i CT, 6755i, 6757i and 6757i CT