315 DPSI - System Port | Service Name:dpsi

315 is a System Port. Transport Protocol TCP UDP , 315 Service Name dpsi, Service Name Description: DPSI.

Port	Protocol	Service Name	Description	Source
315	TCP UDP	dpsi	DPSI	IANA
315	TCP		The Invasor	emsisoft
315	TCP UDP	dpsi	DPSI	bekkoame

Port	Service Name	Description
731	netviewdm3	IBM NetView DM/6000 receive/tcp
1841	netopia-vo3	netopia-vo3
2860	dialpad-voice1	Dialpad Voice 1
3313	uorb	Unify Object Broker
3942	srdp	satellite distribution
5364	kdnet	Microsoft Kernel Debugger
5733		Unassigned
6353		Unassigned
8059	senomix08	Senomix Timesheets Client [1 year assignment]
8252		Unassigned

A port is an endpoint of communication in an operating system. While the term is also used for hardware devices, in software it is a logical construct that identifies a specific process or a type of service.

Port numbers are assigned in various ways, based on three ranges: System Ports (0-1023), User Ports (1024-49151), and the Dynamic and/or Private Ports (49152-65535);

The Well Known Ports are assigned by the IANA and on most systems can only be used by system (or root) processes or by programs executed by privileged users. Ports are used in the TCP [RFC793] to name the ends of logical connections which carry long term conversations. For the purpose of providing services to unknown callers, a service contact port is defined. This list specifies the port used by the server process as its contact port. The contact port is sometimes called the "well-known port". To the extent possible, these same port assignments are used with the UDP [RFC768]. The range for well-known ports managed by the IANA is 0-1023.
DYNAMIC AND/OR PRIVATE PORTS Registered Ports are those from 1024 through 49151.
The Dynamic and/or Private Ports are those from 49152 through 65535