The Norstar Caller ID Card Features:

• Mnfr. Part #: NT7B75AAAE
• Four Caller ID Trunks or Lines.
• Caller ID CID Trunk Cartridge has the same functionality as the LS/DS Trunk Cartridge but with additional capabilities to detect and translate incoming call information for display on the Norstar sets
• Provides access for up to four central office lines

Compatibility:

• Modular ICS core (MICS)
• Fiber and Copper Trunk Modules
• Compact ICS core (CICS)
• Modular 8x24 Copper Trunk Module