Series 6 Model 120 PDF Print E-mail


Centigram offered two enhanced models of the Model 120 system:

The Model 120I uses a standard 486SX central processing unit (CPU) to run any combination of optional and base features. Integrated Drive Electronics (IDE) technology integrates the system's controller functions into the disk assembly, making an interface card unnecessary.  Fewer components contribute to the Model 120I's low cost and high reliability.

The Model 120S uses a Pentium-based CPU that allows it to support almost twice as many ports as the Model 120I system. Small Computer System Interface (SCSI) hard drive technology provides access to multiple hard drives, dramatically increasing the number of message storage hours available.

Both Model 120 systems support all the same applications and features as higher-capacity Series 6 models, including:

  • VoiceMemo ®, a feature-rich voice messaging product.
  • FaxMemo, a mailbox-based fax management product.
  • OneView™, an integrated multimedia messaging product for the desktop.
  • CallAgent ®, an advanced call processing solution for individuals and organizations
  • MESA-Net, a digital networking option that can link up to 1,500 Centigram servers
  • Digital integration with virtually any PBX or Central Office or telephone system
  • Computer Telephony Integration (CTI) and Digital Signal Processing (DSP) technology for future application support.

Standard Components Provide Outstanding Value:

The Model 120 incorporates proven off-the-shelf components, allowing customers to enjoy a feature-rich, high quality solution that's cost-effective as well.  In addition, the Model 120's superior design includes:

Hard drive redundancy that ensures that no system data is lost -- even if one of the drives is removed from service. A primary drive and its redundant partner function as "mirror images" of each other; when a drive is put back into service, it automatically synchronizes itself with its "partner". As a result, hard drive redundancy enhances system availability.

A watchdog timer that monitors and automatically initializes the system to recover any possible system error events, saving you time and service calls.

Legacy Model 120I & 120S Specifications:


  Model 120IModel 120S
Number of Ports:4 to 32 Voice Ports0 to 16 Fax Ports8 to 60 Voice Ports0 to 32 Fax Ports
Hours of Speech Storage:Up to 55 hoursUp to 480 hours
Number of Mailboxes:Up to 2730Up to 45,400
Cabinet Size Per Module:Height:   25.5” (64.8 cm)
Width:    7.35” (18.7 cm)
Depth:    16.5” (41.9 cm)
Height:   25.5” (64.8 cm)
Width:    7.35” (18.7 cm)
Depth:    16.5” (41.9 cm)
Weight:25 lbs (11.36 kg)25 lbs (11.36 kg)


CPU Type:Intel 80486 DX 33 MHzPentium 100 MHz.
Hard Drive Type: IDE SCSI
Floppy Type: 3.5”, 1.44 MB  
Serial I/O: 2 ports 2 ports
Serial Interface Card: 1 per system (2, 4 or 8 ports) 1 per system (2, 4 or 8 ports)
NOTE: MFR Stopped at 6.1B  


Temperature: Operating: 50° to 95° F. (9° to 35° C.)
Nonoperating: -40° to 158° F. (-40 to 70 C.)
Humidity: Operating: 85% at 95° F. (35° C.)
Nonoperating: 5 to 95% at 95° F (35° C.)
ESD: Tested to 15kV
AC Power: 110 to 120 VAC, and 50 to 60 Hz., 500 watt, 10 amps
220 to 240 VAC, and 50 to 60 Hz., 500 watt, 10 amps
DC Power: Not Available on this model
BTU’s: 1706 BTU Units
Agency Approvals: UL, FCC Parts 15 and 68, CSA, DOC, EN60950, CISPR22, BABT