We specialize in used & refurbished business phones for existing phone systems

AT&T Merlin 410 Phone System

PLEASE NOTE: All business telephones listed on this web site will operate only if connected to the appropriate phone system. They will not function as a stand-alone telephone.

Manufacturer: AT&T/LUCENT/AVAYA
Availability: Out of stock

AT&T Merlin 410 Business Phone System


The AT&T Merlin Classic 410 Control Unit (KSU) is equipped to enable up to 4 lines and 10 stations. It is compatible with either a Feature Package 1 or 2. Works with all Merlin Classic phones.

  • Allows up to 4 incoming lines and 10 telephone stations
  • Compatible with all Merlin phones
  • Features can be added on with a Feature Package 1 or Feature Package 2, and Music on Hold cartridge
  • Comes with power cord
  • Refurbished

*You cannot use both a Feature Package 1 and a Feature Package 2 at the same time.  They go in the top slot of the phone system. 

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