e504sp.tsp is a e504sp
belonging to Eumex 504PC USB Telephony Service Provider
from Deutsche Telekom AG
Non-system processes like e504sp.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.