Datatek UMI - Manual (Page 6)

U N I V E R S A L M E D I A T I O N I N T E R F A C E ( U M I ) U S E R M A N U A L
04/30/09 6
1 I N T R O D U C T I O N
Connectivity between an IP network and a BNS (refers to both BNS-2000 and BNS-2000 VCS)
network is accomplished using the Universal Mediation Interface Module (UMI). As a state-of-
the-art “solid state” module (no disks or fans) which resides in a BNS node, the UMI is both a
replacement and enhancement of the LCS60 product.
The UMI allows both synchronous and asynchronous endpoints connected to a BNS network to
access endpoints on an IP network. Similarly, endpoints on an IP network can access both
synchronous and asynchronous endpoints on a BNS network.
The UMI can be located anywhere in the BNS network, thus simplifying configuration,
administration and maintenance without affecting operation or connectivity.
1.1 FEATURE SUMMARY
The UMI provides a complete mediation interface (i.e., gateway) for BNS and IP protocols. The
basic features are:
1.1.1 504 Virtual Sessions per UMI
The UMI operates like a “virtual SAM504”, in effect mapping 504 SAM ports within a BNS network
to 504 “virtual ports” residing in the IP network, and vice versa.
1.1.2 Seamless Operation in Either Call Set-up Direction
The UMI provides the terminal/PC user on either network with a “terminal server” type interface
where a connection setup to a user/device on the other network can be made to appear to the
calling user as if the destination endpoint is on the same network.
1.1.3 Closed User Groups (CUGs)
The UMI supports Closed User Groups (CUGs) to restrict callers to specified destinations. This is
an important feature for protecting sensitive endpoints in a corporate wide network without the
burden of special “security servers”.
1.1.4 Hunt Groups
A Hunt Group is a set of UMI “virtual ports”, which are arranged to receive calls from the IP
network at a common address.
1.1.5 Domain Name Server (DNS) capability
The UMI can maintain a set of mnemonic host names, analogous to the /etc/hosts file on both
UNIX and Microsoft Windows platforms. This allows the UMI to perform a translation between a
user-provided name and its associated IP address and TCP port number, for BNS-to-IP calls. The
use of a mnemonic name is optional; the UMI will always accept an IP address in its base form.
Additionally, the UMI allows for the definition of an external DNS to be used for translation of
mnemonic addresses not defined in the internal host table. Three DNS name server IP addresses
are supported by the UMI.
1.1.6 Peer to Peer Encryption
The UMI can encrypt user data on the IP network. This prevents unauthorized access to sensitive
information. Encryption can be enabled on a per session basis.