The first IR grism was installed together with some slits. First `spectroscopic' light with NOTCam was successfully made in August 2003. See for the first-light report and commissioning
http://www.not.iac.es/technical/astronomical/instruments/notcam/spectroscopy/The grism allows separate J (5th order), H (4th order), and K (3rd order) observations with spectral resolution of 2500 for a 0.5 arcsec slit width using the Wide Field camera. NOTCam in spectroscopic made is now available to the community on a shared risks basis
Further upgrades to the spectrocopic capabilities of NOTcam, e.g. R=6000 on HR camera and R=800 on WF camera, are awaiting input from Nordic astronomical community regarding science drivers etc.