Specifications:Spare 48 Button IP PKM UnitFor use with 5324/5330/5330e/5340/5340e IP Phones and 8528/8568 Telephones.Includes IP PKM 48 Button Unit, Cable, Installation Sheet.IP PKM Interface Module (50005662) NOT included.Minimum Software required:
- MiV Business Release 4.2
- SX-200 ICP Release 4.0 (UR5)
- MiV Office 250 Release 5.0