An Enterprise Session Border Controller, also known as a Session Initiation Protocol (SIP) controller or gatekeeper is an application feature of a typical IP networking system.
It controls the session initiation communication by accepting, detecting, and responding to requests for services.
The term is widely used in the software industry to refer to any entity that controls or manages the Enterprise Session Border Controller within an IP network.An Enterprise Session Border Controller is used to authenticate users' authorization to a server and to establish security parameters in the network.
When a user calls an Enterprise Session Border Controller-enabled phone number, the number is forwarded to the IP host where it is converted to a meaningful character string, then passed on to the caller.
These packets can be captured, converted into content, and analyzed by application programs.An IP session initiator uses this information to authenticate a user's identity.
This session key prevents unauthorized access to the server or other IP-based resources.Enterprise Session Border Controller is employed in various protocols that use IP networks as their transport mechanisms.