Norstar Voice Mail provides advanced voice processing and auto attendant features integrated with the Norstar telephone systems and provides language support for English, Spanish, and French. The Norstar Applications Module (NAM) can be expanded to 32 channels to provide support for other applications like ACD and IVR, with a maximum of 16 channels for Norstar Voice Mail. The system supports up to 1000 mailboxes and standard message storage time on Release 4.0 systems is 100 hours. Other options available with Norstar Voice Mail 4.0 are Fax Messaging, AMIS and Digital Networking and Desktop Messaging.

Norstar Voice Mail Release 4.0 is compatible with Norstar DR5 3x8, DR5 6x16, DR5 8x24, Centrex Plus, Modular ICS T1, Modular ICS XL and XC, and Compact ICS. The MINUET ACD applications were designed for the Norstar Application Module (NAM) and runs in conjunction with Norstar Voice Mail Release 4.0 systems. MINUET is supported on up to 4 channels and can share channels with Norstar Voice Mail. System requirements for MINUET are Modular ICS, Compact ICS Release 1 software or greater, Modular or Compact DR5 Release 11.07 or higher, and Disconnect Supervision on Norstar systems.