The LS/DS Analog Trunk Card adds four lines to your Norstar phone system.  It does not provide Caller ID (CI) information to the system. 

It is compatible with the Norstar CICS, MICS, and legacy Modular 8x24 systems.  It can also be used in both the fiber and copper 12x0 expansion line module.  It is slotted in either your main system or in an expansion module.