Session border controllers are servers which take care of
housekeeping between two communication endpoints. Depending on how
they are defined, they can perform some or all of the following functions:
- Directory Services - allow users to find each other on the network
- Authentication - verify user's elegibility to talk with one another
- Firewall transversal - allow communication to take place between
users of different firewalls
- Encryption - provide security for the data stream
- Translation - provide translation between devices using different
protocols
(LK)