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Mitel M670 Expansion Module (formerly known as 536M)

This product has been discontinued, supplies are limited.
No replacement is listed at this time.

  • Display - LED line keys
  • Line Keys - 36 keys
  • Daisy Chain - Connect up to 3 expansion modules per supported phone model
  • Compatible Phones - Mitel M670 - 6753, 6755, 6757, 6739
  • Call Handling - Call park and pickup, Directory, Callers log, Do Not Disturb, Flash features
  • Call Features - Programmable features including Line, Speed Dial, Busy Lamp Field(maximum of 50 BLF per phone), Bridged Line Appearance, Shared Call Appearance and Do Not Disturb.
  • Power - Via IP phone connection. No separate power supply required
  • Contents - Mitel M670 expansion module with attached cord, Footstand, Programmable keys paper sheet label (Mitel M670 only), Phone mounting and wall mounting screws.
The M670 expansion module is designed to increase the power and flexibility of the 5i Series SIP telephones. Up to three modules can be used with the 55, 57 or 57 CT telephone to create a powerful, feature rich console option. The M670 shares power and signaling with the phone, eliminating the need for additional wiring. Designed for receptionists, administrative assistants, call center agents, power users, and executives who need to monitor and manage a large volume of calls on a regular basis, the 5i Series Expansion Modules provide an intelligent choice for all Enterprise IP environments.
Mfg. Part Number:


Mitel M670 Expansion Module (formerly known as 536M)
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