natspi2.tsp is a NATSPI2
belonging to NATSPI2 Dynamically Linked Library
from AVAYA Communication
Non-system processes like natspi2.tsp originate from software you installed on your system. Since most applications store data in your system's registry, it is likely that your registry has suffered fragmentation and accumulated invalid entries which can affect your PC's performance. It is recommended that you check your registry to identify slowdown issues.